New Theory on How Homing Pigeons Find Home

Jane J. Lee


Homing pigeons (Columba livia) have been prized for their navigational abilities for thousands of years. They've served as messengers during war, as a means of long-distance communication, and as prized athletes in international races.

But there are places around the world that seem to confuse these birds—areas where they repeatedly vanish in the wrong direction or scatter on random headings rather than fly straight home, said Jon Hagstrum, a geophysicist who authored a study that may help researchers understand how homing pigeons navigate.

Hagstrum's paper, published online Wednesday in the Journal of Experimental Biology, proposes an intriguing theory for homing pigeon disorientation—that the birds are following ultralow frequency sounds back towards their lofts and that disruptions in their ability to "hear" home is what screws them up.

Called infrasound, these sound waves propagate at frequencies well below the range audible to people, but pigeons can pick them up, said Hagstrum, who works at the U.S. Geological Survey in Menlo Park, California.

"They're using sound to image the terrain [surrounding] their loft," he said. "It's like us visually recognizing our house using our eyes."

Homeward Bound?

For years, scientists have struggled to explain carrier pigeons' directional challenges in certain areas, known as release-site biases.

This "map" issue, or a pigeon's ability to tell where it is in relation to where it wants to go, is different from the bird's compass system, which tells it which direction it's headed in. (Learn about how other animals navigate.)

"We know a lot about pigeon compass systems, but what has been controversial, even to this day, has been their map [system]," said Cordula Mora, an animal behavior researcher at Bowling Green State University in Ohio who was not involved in the study.

Until now, the two main theories say that pigeons rely either on their sense of smell to find their way home or that they follow the Earth's magnetic field lines, she said.

If something screwed up their sense of smell or their ability to follow those fields, the thinking has been, that could explain why pigeons got lost in certain areas.

But neither explanation made sense to Hagstrum, a geologist who grew interested in pigeons after attending an undergraduate lecture by Cornell biologist William Keeton. Keeton, who studied homing pigeons' navigation abilities, described some release-site biases in his pigeons and Hagstrum was hooked.

"I was just stunned and amazed and fascinated," said Hagstrum. "I understand we don't get dark matter or quantum mechanics, but bird [navigation]?"

So Hagstrum decided to look at Keeton's pigeon release data from three sites in upstate New York. At Castor Hill and Jersey Hill, the birds would repeatedly fly in the wrong direction or head off randomly when trying to return to their loft at Cornell University, even though they had no problems at other locations. At a third site near the town of Weedsport, young pigeons would head off in a different direction from older birds.

There were also certain days when the Cornell pigeons could find their way back home from these areas without any problems.

At the same time, homing pigeons from other lofts released at Castor Hill, Jersey Hill, and near Weedsport, would fly home just fine.

Sound Shadows

Hagstrum knew that homing pigeons could hear sounds as low as 0.05 hertz, low enough to pick up infrasounds that were down around 0.1 or 0.2 hertz. So he decided to map out what these low-frequency sound waves would have looked like on an average day, and on the days when the pigeons could home correctly from Jersey Hill.

He found that due to atmospheric conditions and local terrain, Jersey Hill normally sits in a sound shadow in relation to the Cornell loft. Little to none of the infrasounds from the area around the loft reached Jersey Hill except on one day when changing wind patterns and temperature inversions permitted.

That happened to match a day when the Cornell pigeons had no problem returning home.

"I could see how the topography was affecting the sound and how the weather was affecting the sound [transmission]," Hagstrum said. "It started to explain all these mysteries."

The terrain between the loft and Jersey Hill, combined with normal atmospheric conditions, bounced infrasounds up and over these areas.

Some infrasound would still reach Castor Hill, but due to nearby hills and valleys, the sound waves approached from the west and southwest, even though the Cornell loft is situated south-southwest of Castor Hill.

Records show that younger, inexperienced pigeons released at Castor Hill would sometimes fly west while older birds headed southwest, presumably following infrasounds from their loft.

Hagstrum's model found that infrasound normally arrived at the Weedsport site from the south. But one day of abnormal weather conditions, combined with a local river valley, resulted in infrasound that arrived at Weedsport from the Cornell loft from the southeast.

Multiple Maps

"What [Hagstrum] has found for those areas are a possible explanation for the [pigeon] behavior at these sites," said Bowling Green State's Mora. But she cautions against extrapolating these results to all homing pigeons.

Some of Mora's work supports the theory that homing pigeons use magnetic field lines to find their way home.

What homing pigeons are using as their map probably depends on where they're raised, she said. "In some places it may be infrasound, and in other places [a sense of smell] may be the way to go."

Hagstrum's next steps are to figure out how large an area the pigeons are listening to. He's also talking to the Navy and Air Force, who are interested in his work. "Right now we use GPS to navigate," he said. But if those satellites were compromised, "we'd be out of luck." Pigeons navigate from point to point without any problems, he said.


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Former Police Captain Cleared of Ex-Wife's Murder













A former Ohio police captain has been cleared in the murder of his ex-wife and released from prison, where he had been for 15 years -- but prosecutors say they plan to appeal the ruling.


"I'm just a jumble of emotions and I just can't wait to hug all of my family," Douglas Prade told reporters outside the prison when he was released Tuesday afternoon, according to ABC News' Cleveland affiliate WEWS-TV.


He thanked "all of the people that supported me and communicated with me and told me to keep my spirits up."


Prade's ex-wife, Dr. Margo Prade, 41, was found shot to death in her minivan outside of her medical practice in November 1997.


Douglas Prade was an Akron, Ohio, police captain at the time.


At trial, he was convicted on murder and wiretapping charges and sentenced to life in prison.


Prade, now 66, maintained his innocence and, eventually, the Ohio Innocence Project took up his cause and petitioned for his release or a new trial based on new DNA testing.


One of the key factors in Prade's conviction was a bite mark found on Margo Prade's body. The prosecution brought in an expert that testified the bite mark came from Douglas Prade.






Phil Masturzo/Akron Beacon Journal/AP Photo











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The Ohio Innocence Project commissioned a new DNA test that was not available at the time of the trial. The test found that the DNA around the bite was not Douglas Prade's.


Summit County Court of Common Pleas Judge Judy Hunter ruled that Prade should be set free because the new DNA results were "clear and convincing" in Prade's favor, according to the Associated Press.


Prosecutor Sherri Walsh is strongly disputing the new DNA evidence.


"This is a gross misapplication of the law, and we will be appealing Prade's exoneration. The defendant had to present new evidence so convincing that no juror would have found him guilty, and he failed to do so," Walsh said in a statement. "The DNA evidence presented by the Ohio Innocence Project on behalf of Prade is contaminated and unreliable. It does not prove innocence."


Walsh said that all evidence points to Prade as the person who killed Margo Prade.


"He was a serial stalker," Walsh said. "He tapped her phones and recorded more than 400 of her personal calls. He had verbally abused and threatened her. And we know Margo was afraid of him."


Other evidence includes Prade's handwritten tally of the bills he owed subtracted from the life insurance money he'd get if his wife died, Walsh said. Two witnesses placed him at the murder scene.


"We have not seen any credible evidence that suggests innocence, and we are taking all available actions to keep a dangerous killer off the streets," Walsh said.


Margo Prade's family is also upset by the decision.


"I feel like my life is in danger and my family's life is in danger now," Margo Prade's nephew Tony Fowler told the AP. "[Dr. Prade and her mother] are probably turning over in their graves but God will have the final say."


Alison McCarty, the former prosecutor on the case, told WEWS she respected the court's decision, but emphasized that the case is not yet closed.


"[Margo Prade] was such a superstar and it was just such a tremendous loss, and her death still needs justice," McCarty said.


The state has 30 days to file a motion in the court of appeals requesting permission to appeal the decision for a new trial.



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Union says Congress can save money by lowering amount paid for contractor salaries



Labor leaders, including those with the American Federation of Government Employees (AFGE), have long pushed Congress to lower payments for contractor salaries. The cap on Defense Department contractor pay now stands at $763,000, which is much more than President Obama makes.




AFGE said billions of dollars could be saved each year if the cap were set at $200,000, as the Obama administration has proposed. A cap would not prevent contractors from paying their employees more, but it would limit the amount the government provides for contractor salaries.

“Think about it,” said AFGE President J. David Cox. Billions of dollars could be cut “from federal spending over the next decade with no impact on government services, simply by subsidizing these almost unimaginably wealthy contractor employees at a slightly less generous level.”

Stan Soloway, president of the Professional Services Council, which represents contractors, said the cap was put in place for two reasons: to “ensure companies can attract top executive talent but also ensure the government is not subsidizing egregious executive salaries.”

Lowering the cap, he added, could “deny both the contractor and the government access to the talent it needs.”

The Obama administration also has pushed Congress to lower the amount paid to contractors. A year ago, a blog post from Leslie Field, acting administrator of the Office of Management and Budget’s office of federal procurement policy, said Obama wants “Congress to scrap an outdated law that requires taxpayers to foot the bill for excessive payments to CEOs and other senior executives of companies that contract with the Government.”

Because of that law, Field said taxpayers “have their hard-earned resources spent reimbursing contractor executives far in excess of what can be justified.”

In December, Congress considered, but did not approve a proposal to lower the cap. Instead, Congress told the Government Accountability Office to study the effect of reducing contractor compensation.

“Congress has had no problem freezing wages for one group of federal workers, yet many lawmakers have turned a blind eye to the outrageous salaries earned by another group,” Cox said. “Both workforces are paid for by American taxpayers. What’s the difference?”


Poll: Workers’ opinions

With the federal government going through an extended period of shrinking budgets, government managers will have to become better stewards of the workforce.

That’s the message from a Merit Systems Protection Board (MSPB) report issued Tuesday.

The report is based on a survey of more than 42,000 federal workers. Although done in 2010, the survey has lessons that are relevant today as supervisors increasingly try to figure out how to get the job done with fewer resources.

Having few resources, namely staffers, is the reason the report was issued so long after the survey was done, according to MSBP.

“If agencies find they can no longer ‘do more with less,’ they may need to make hard decisions about what they can do with the resources they have,” says the report on “Managing Public Employees in the Public Interest.”

Dealing with workers who are not getting the job done can be a difficult task for managers. Federal managers are not very good at that, according to the surveyed employees. The managers also don’t fare well, in the eyes of employees, when it comes to making hard decisions about using their diminished resources.

Less than a quarter of federal employees said their agencies deal with poor performers effectively. Only 29 percent said their organizations eliminate unnecessary functions and positions.

On the positive side, agencies rate better, although not great, on standards of conduct, training and guarding the public interest. Sixty-four percent of employees said their agencies hold employees to high standards of conduct. Sixty percent said they get the necessary training and their agencies put the public interest first.

“Employees are being asked to make personal and professional sacrifices and they need to feel confident that leaders are using limited resources wisely,” MSPB Chairwoman Susan Tsui Grundmann said in a news release. “That requires agency leaders to make tough choices about the programs, functions or positions that they can support.”

Previous columns by Joe Davidson are available at wapo.st/JoeDavidson.

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Million mourners set to honour Cambodia's ex-king






PHNOM PENH: More than one million mourners are expected to line the streets of the Cambodian capital on Friday for a lavish funeral procession for their revered former King Norodom Sihanouk, officials say.

The late monarch's body will be transported atop a golden float shaped like a mythological bird from the royal palace -- where he has been lying in state for three months -- to a funeral pyre in a city park.

"This is our last homage to say goodbye to the great hero king," Prime Minister Hun Sen said on national radio this week.

Sihanouk died of a heart attack aged 89 in Beijing on October 15 last year.

He abdicated in 2004 after steering Cambodia through six decades marked by independence from France, civil war, the murderous Khmer Rouge regime and finally peace.

His body will be kept at the cremation site for religious ceremonies until Monday when his wife and son King Norodom Sihamoni are expected to light the pyre.

Foreign dignitaries -- including French Prime Minister Jean-Marc Ayrault, Japan's Prince Akishino and a host of Asian leaders or high-ranking officials -- are due to attend the cremation.

Flags will fly at half-mast. Radio and TV stations as well as entertainment venues have been instructed to refrain from showing "joyful spectacles", performances and concerts.

Cambodians have been urged to wear black ribbons pinned to their shirts.

"This is the first time in Cambodian history that the country holds such a large funeral for a king," said Sihanouk's long-time personal assistant Prince Sisowath Thomico.

"The nation does this to show him the same respect he gave to the country," he told AFP.

After the cremation, Sihanouk's remains will be put in a golden-colour urn that will be placed in a stupa inside the royal palace, he said, in line with the late monarch's wishes.

Large portraits of Sihanouk have been erected along Phnom Penh's streets and outside the royal palace where people have regularly gathered for religious ceremonies since his death.

"When the King-Father is cremated, it will be a big loss for Cambodia. We will lose our spirit," said Khut Simon, who joined about 100 people for one such ceremony.

"He was a good king who was incomparable," said the 61-year-old, clutching three pictures of the late monarch to her chest.

Sihanouk was just 18 when placed on the throne in 1941 by French colonial authorities, but quickly defied his patron's expectations of a pliant king.

Many elderly Cambodians fondly recall the 1950s and 1960s as a golden era, when Sihanouk led the country to independence from France and a rare period of political stability.

Hundreds of thousands filled the capital's boulevards when his body returned home from China in October.

A self-confessed "naughty boy" who married six times and fathered 14 children, the former king was also a prolific amateur filmmaker and shrewd political survivor who repeatedly backed different regimes.

He was not immune to controversy, notably aligning himself with the communist Khmer Rouge after being ousted by US-backed general Lon Nol in 1970.

After seizing power, the Khmer Rouge put Sihanouk under house arrest in the royal palace. Their 1975-79 reign of terror killed up to two million people, including five of Sihanouk's own children.

Before the Vietnamese invaded and toppled the Khmer Rouge, Sihanouk took exile in China.

He continued to push for peace, which eventually came in the 1990s. Sihanouk triumphantly regained the throne in 1993 but his influence diminished as strongman premier Hun Sen extended his grip on power.

In recent years, Sihanouk -- who battled illnesses including cancer, diabetes and heart problems -- spent long periods of time in China undergoing medical treatment, with his devoted sixth wife Monique always at his side.

-AFP/fl



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Where Mahatma Gandhi died 65 years ago - this day

NEW DELHI: The faintly heard traffic commotion does not affect the serenity of 5, Tees January Marg, a leafy avenue in the heart of the Indian capital, where Mahatma Gandhi spent the last 144 days of his life and where he was assassinated on Jan 30, 1948.

The expansive premises, which houses a museum that showcases the life and philosophy of the man Indians revere as the Father of the Nation, it is difficult to imagine that the man who always preached peace was violently killed by a Hindu zealot, Nathuram Godse.

The only indication that such a violent act happened at this peaceful surroundings are the cemented foot marks - that indicate the path that Mahatma Gandhi took when he came out to meet people on that fateful day - on the manicured lawn. The path leads to a simple white, canopied marble plaform with the inscription "Hey Ram".

Escorted by his grandnieces Abha and Manu, Gandhi was going for his evening prayers.

Gandhi, who was clad in his familiar white dhoti and wraparound, was shot thrice from point blank range. The first indication that he was shot was when a sparkling crimson spot appeared on his white cloth. It was at 5.17 pm.

His last words were — Hey Ram.

Kuldip Nayar, veteran journalist, still remembers the day. "I was working for the Urdu newspaper Anjam at that time when I heard the alerting bell of the news agency ticker. I rushed to the teleprinter and read the incredible words: 'Gandhi shot'.

"I sank into a chair, but then recovered my wits to rush to Birla House. There was complete pandemonium there. Gandhi was lying swathed with a white sheet and people were crying all around him. Nehru was there, looking shocked and shaken," Nayar told IANS.

"Not knowing what to do, I went and reverently touched the chair where Gandhi had last sat. My only thoughts where: what will happen to my country now!"

The premises were earlier known as Birla House which was owned by industrialist G.D.Birla, who had offered it to Gandhi as a place of residence and where he held his important political meetings, including with the nation's first prime minister Jawaharlal Nehru.

"Though it has been 65 years, nation cannot forget him. And the youth still come to Gandhi Smriti," said Krishna, 27, a volunteer here at Gandhi Smriti (Gandhi Memorial) that has been turned into a museum.

"Gandhi ji used to stay in Panchkuian Road in Paharganj in New Delhi but he was requested to move here following communal violence. So he came here," Krishna told IANS.

The subcontinent was witnessing unprecedented communal violence after India and Pakistan were partitioned.

The nation Wednesday will observe the 65the death anniversary of the man also fondly called "Bapu".

Gandhi, who is revered world over as an apostle of peace, was a great believer in inter-faith harmony and fought all his life for it.

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Timbuktu’s vulnerable manuscripts are city’s "gold"


French and Malian troops surrounded Timbuktu on Monday and began combing the labyrinthine city for Islamist fighters. Witnesses, however, said the Islamists, who claim an affiliation to al Qaeda and had imposed a Taliban-style rule in the northern Malian city over the last ten months, slipped into the desert a few days earlier.

But before fleeing, the militants reportedly set fire to several buildings and many rare manuscripts. There are conflicting reports as to how many manuscripts were actually destroyed. (Video: Roots of the Mali Crisis.)

On Monday, Sky News posted an interview with a man identifying himself as an employee of the Ahmed Baba Institute, a government-run repository for rare books and manuscripts, the oldest of which date back to the city's founding in the 12th century. The man said some 3,000 of the institute's 20,000 manuscripts had been destroyed or looted by the Islamists.

Video showed what appeared to be a large pile of charred manuscripts and the special boxes made to preserve them in front of one of the institute's buildings.

However, a member of the University of Cape Town Timbuktu Manuscript Project told eNews Channel Africa on Tuesday that he had spoken with the director of the Ahmed Baba Institute, Mahmoud Zouber, who said that nearly all of its manuscripts had been removed from the buildings and taken to secure locations months earlier. (Read "The Telltale Scribes of Timbuktu" in National Geographic magazine.)

A Written Legacy

The written word is deeply rooted in Timbuktu's rich history. The city emerged as a wealthy center of trade, Islam, and learning during the 13th century, attracting a number of Sufi religious scholars. They in turn took on students, forming schools affiliated with's Timbuktu's three main mosques.

The scholars imported parchment and vellum manuscripts via the caravan system that connected northern Africa with the Mediterranean and Arabia. Wealthy families had the documents copied and illuminated by local scribes, building extensive libraries containing works of religion, art, mathematics, medicine, astronomy, history, geography, and culture.

"The manuscripts are the city's real gold," said Mohammed Aghali, a tour guide from Timbuktu. "The manuscripts, our mosques, and our history—these are our treasures. Without them, what is Timbuktu?"

This isn't the first time that an occupying army has threatened Timbuktu's cultural heritage. The Moroccan army invaded the city in 1591 to take control of the gold trade. In the process of securing the city, they killed or deported most of Timbuktu's scholars, including the city's most famous teacher, Ahmed Baba al Massufi, who was held in exile in Marrakesh for many years and forced to teach in a pasha's court. He finally returned to Timbuktu in 1611, and it is for him that the Ahmed Baba Institute was named.

Hiding the Texts

In addition to the Ahmed Baba Institute, Timbuktu is home to more than 60 private libraries, some with collections containing several thousand manuscripts and others with only a precious handful. (Read about the fall of Timbuktu.)

Sidi Ahmed, a reporter based in Timbuktu who recently fled to the Malian capital Bamako, said Monday that nearly all the libraries, including the world-renowned Mamma Haidara and the Fondo Kati libraries, had secreted their collections before the Islamist forces had taken the city.

"The people here have long memories," he said. "They are used to hiding their manuscripts. They go into the desert and bury them until it is safe."

Though it appears most of the manuscripts are safe, the Islamists' occupation took a heavy toll on Timbuktu.

Women were flogged for not covering their hair or wearing bright colors. Girls were forbidden from attending school, and boys were recruited into the fighters' ranks.

Music was banned. Local imams who dared speak out against the occupiers were barred from speaking in their mosques. In a move reminiscent of the Taliban's destruction of Afghanistan's famous Bamiyan Buddha sculptures, Islamist fighters bulldozed 14 ancient mud-brick mausoleums and cemeteries that held the remains of revered Sufi saints.

A spokesman for the Islamists said it was "un-Islamic" for locals to "worship idols."


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Clinton Talks 2016, Stands by Benghazi Testimony













In her final television interview as Secretary of State, Hillary Clinton told ABC's Cynthia McFadden that she is "flattered and honored" at the intense interest in whether she might run for president in 2016.


But Clinton maintained that right now she's "not focused" on a presidential campaign; instead she said she wants to return to a "normal" life when she steps down from office on Friday.


Watch Cynthia McFadden's full interview with Secretary of State Hillary Clinton on "Nightline" tonight at 12:35 a.m. ET


Clinton's first order of business, she said, will be sleep.


"I hope I get to sleep in," she told McFadden with a laugh. "It will be the first time in many years. I have no office to go to, no schedule to keep, no work to do. That will probably last a few days then I will be up and going with my new projects," she said.


"I have been working or attending school full-time since I was 13. This is going to be new for me. I don't know how I'm going to react to it, to be honest."


PHOTOS: Hillary Clinton Through the Years: From Wellesley to the White House, and Beyond


Clinton has had no trouble articulating her reaction to what has arguably been the darkest chapter of her tenure as Secretary of State: the Sept. 11 attack on the U.S. consulate in Benghazi, Libya, in which four Americans, including Ambassador Chris Stevens, were killed.












Final Farewell: Hillary Clinton Steps Down as Secretary of State Watch Video





Secretary Clinton had a heated exchange with Republican Senator Ron Johnson during her five hours of testimony before Congress about the attack last week. Johnson accused the administration of misleading the American people about the cause of the attack, when UN Ambassador Susan Rice, on Sunday political talk shows, blamed it on protesters.


Clinton snapped back at Johnson, "Four Americans are dead. What difference does it make?" For that, she has been sharply criticized by some conservatives.


Clinton said she "absolutely" stands by her response to Johnson, maintaining that the administration has been transparent with the information it knew, when it was available. Clinton said partisan politics have no place in a response to a terrorist attack against Americans.


"I believe that we should in public life, whether you're in the administration or the Congress, de-politicize crisis and work together to figure out what happened, what we can do to prevent it and then put into place both the institutional changes and the budgetary changes that are necessary, " she said.


"When someone tries to put into a partisan lens, when they focus not on the fact that we have such a terrible event happening with four dead Americans but instead what did somebody say on a Sunday morning talk show? That to me is not in keeping with the seriousness of the issue and the obligation we all have as public servants"


FULL TRANSCRIPT: Sec. of State Hillary Clinton's "Nightline" Interview


Asked about her health, Clinton said her recent illness, concussion and blood clot were all a surprise.


"When I got sick and fainted and hit my head I was so surprised, and I thought I would just get up and go to work. And thankfully I had very good medical care and doctors who said, 'No we'd better do an MRI, we'd better do this, we'd better do that,'" she said, calling herself "lucky."


"I know now how split second beset by a virus and dehydrated, what it can do to you."


Though she confirmed she is wearing special glasses to help with double vision, a lingering issue following her illness, Clinton said that she expects to be fully recovered and operating at "full speed" soon.


The Secretary told McFadden that if she does decide to run, she would have "no problem" making her health records public.


"Of course, that goes with the territory," she said.



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Bipartisan group of senators to unveil framework for immigration overhaul



The detailed, four-page statement of principles will carry the signatures of four Republicans and four Democrats, a bipartisan push that would have been unimaginable just months ago on one of the country’s most emotionally divisive issues.


The document is intended to provide guideposts that would allow legislation to be drafted by the end of March, including a potentially controversial “tough but fair” route to citizenship for those now living in the country illegally.


[Do you think the new immigration plan will work? Discuss this and other immigration issues in The Washington Post’s new political forums.]






It would allow undocumented immigrants with otherwise clean criminal records to quickly achieve probationary legal residency after paying a fine and back taxes.

But they could pursue full citizenship — giving them the right to vote and access to government benefits — only after new measures are in place to prevent a future influx of illegal immigrants.

Those would include additional border security, a new program to help employers verify the legal status of their employees and more-stringent checks to prevent immigrants from overstaying visas.

And those undocumented immigrants seeking citizenship would be required to go to the end of the waiting list to get a green card that would allow permanent residency and eventual citizenship, behind those who had already legally applied at the time of the law’s enactment.

The goal is to balance a fervent desire by advocates and many Democrats to allow illegal immigrants to emerge from society’s shadows without fear of deportation with a concern held by many Republicans that doing so would only encourage more illegal immigration.

“We will ensure that this is a successful permanent reform to our immigration system that will not need to be revisited,” the group asserts in its statement of principles.

The framework identifies two groups as deserving of special consideration for a separate and potentially speedier pathway to full citizenship: young people who were brought to the country illegally as minors and agricultural workers whose labor, often at subsistence wages, has long been critical to the nation’s food supply.


Expanding visas

The plan also addresses the need to expand available visas for high-tech workers and promises to make green cards available for those who pursue graduate education in certain fields in the United States.

“We must reduce backlogs in the family and employment visa categories so that future immigrants view our future legal immigration system as the exclusive means for entry into the United States,” the group will declare.

The new proposal marks the most substantive bipartisan step Congress has taken toward new immigration laws since a comprehensive reform bill failed on the floor of the Senate in 2007.

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"Off the scale" smog envelops Beijing again






BEIJING: Pollution levels in Beijing rose above index limits on Tuesday, the US embassy said, as a dense cloud of haze shrouded large swathes of northern China.

Mask-wearing residents of the capital battled through a second consecutive day of pollution at hazardous levels, despite Beijing municipal authorities warning those with respiratory difficulties to stay indoors.

It is at least the fourth time a dense cloud of haze has descended on northern China this winter, reducing visibility and causing flight delays, with even state media repeatedly expressing anger over the issue.

"The current environmental problems are worrisome," Wang Anshun, who took over as mayor of the Chinese capital this week, was quoted as saying by the official Xinhua news agency.

The US embassy's air quality index (AQI) reading for Beijing stood at 495 and "hazardous" at 11am, after having reached 517, or "beyond index", at 6am.

The index rates anything over 150 as "unhealthy", over 300 as "hazardous", while a reading above the upper limit of 500 is regarded as "beyond index".

Meanwhile, the Beijing Municipal Environmental Monitoring Centre gave the figure at 10am as 393, indicating the air in the capital was "severely polluted".

The toxic air follows an extreme bout of pollution earlier this month, peaking on January 13 when state media said readings for PM 2.5, particles small enough to deeply penetrate the lungs, reached 993 micrograms per cubic metre, almost 40 times the World Health Organisation's recommended safe limit.

The pollution sparked online uproar from residents and outrage from state media who urged officials to confront Beijing's poor air quality.

At the height of the smog, many residents rushed to buy facemasks and air purifiers, and doctors at two of Beijing's major hospitals said the number of patients with respiratory problems had increased sharply during the period.

China's pollution problems are blamed on the country's rapid urbanisation and dramatic economic development.

A total of 61 flights were delayed at Beijing Airport just before 9.30am on Monday, according to its website.

-AFP/fl



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Anti-Dalit remarks: Jaipur Police summon Ashis Nandy

JAIPUR: Jaipur Police today summoned sociologist Ashis Nandy for his alleged castetist remarks at the Jaipur literature festival last week.

Nandy had said that the people belonging to OBC (Other Backward Class), Scheduled Caste (SC) and ST (Scheduled Tribe) are more corrupt during a discussion at the JLF on January 26.

An FIR was lodged against Nandy and Roy last Saturday by Rajpal Meena, chairperson of the SC/ST Rajasthan Manch.

Nandy had clarified that what he meant was that the most of the people getting caught in corruption charges belongs to marginalized sections, as they don't have the means to save themselves unlike people from upper castes.

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