Race Is On to Find Life Under Antarctic Ice



A hundred years ago, two teams of explorers set out to be the first people ever to reach the South Pole. The race between Roald Amundsen of Norway and Robert Falcon Scott of Britain became the stuff of triumph, tragedy, and legend. (See rare pictures of Scott's expedition.)


Today, another Antarctic drama is underway that has a similar daring and intensity—but very different stakes.


Three unprecedented, major expeditions are underway to drill deep through the ice covering the continent and, researchers hope, penetrate three subglacial lakes not even known to exist until recently.


The three players—Russia, Britain, and the United States—are all on the ice now and are in varying stages of their preparations. The first drilling was attempted last week by the British team at Lake Ellsworth, but mechanical problems soon cropped up in the unforgiving Antarctic cold, putting a temporary hold on their work.


The key scientific goal of the missions: to discover and identify living organisms in Antarctica's dark, pristine, and hidden recesses. (See "Antarctica May Contain 'Oasis of Life.'")


Scientists believe the lakes may well be home to the kind of "extreme" life that could eke out an existence on other planets or moons of our solar system, so finding them on Earth could help significantly in the search for life elsewhere.



An illustration shows lakes and rivers under Antarctica's ice.
Lakes and rivers are buried beneath Antarctica's thick ice (enlarge).

Illustration courtesy Zina Deretsky, NSF




While astrobiology—the search for life beyond Earth—is a prime mover in the push into subglacial lakes, so too is the need to better understand the ice sheet that covers the vast continent and holds much of the world's water. If the ice sheet begins to melt due to global warming, the consequences—such as global sea level rise—could be catastrophic.


"We are the new wave of Antarctic explorers, pioneers if you will," said Montana State University's John Priscu, chief scientist of the U.S. drilling effort this season and a longtime Antarctic scientist.


"After years of planning, projects are coming together all at once," he said.


"What we find this year and next will set the stage for Antarctic science for the next generation and more—just like with the explorers a century ago."


All Eyes on the Brits


All three research teams are at work now, but the drama is currently focused on Lake Ellsworth, buried 2 miles (3.2 kilometers) below the West Antarctic ice sheet.


A 12-person British team is using a sophisticated technique that involves drilling down using water melted from the ice, which is then heated to 190 degrees Fahrenheit (88 degrees Celsius).


The first drilling attempt began on December 12, but was stopped at almost 200 feet (61 meters) because of technical problems with the sensors on the drill nozzle.


Drilling resumed on Saturday but then was delayed when both boilers malfunctioned, requiring the team to wait for spare parts. The situation is frustrating but normal due to the harsh climate, British Antarctic team leader Martin Siegert, who helped discover Lake Ellsworth in 2004, said in an email from the site.


After completing their drilling, the team will have about 24 hours to collect their samples before the hole freezes back up in the often below-zero cold. If all goes well, they could have lake water and mud samples as early as this week.


"Our expectation is that microbes will be found in the lake water and upper sediment," Siegert said. "We would be highly surprised if this were not the case."


The British team lives in tents and makeshift shelters, and endures constant wind as well as frigid temperatures. (Take an Antarctic quiz.)


"Right now we are working round the clock in a cold, demanding and extreme location-it's testing our own personal endurance, but it's worth it," Siegert said.


U.S. First to Find Life?


The U.S. team is drilling into Lake Whillans, a much shallower body about 700 miles inland (1,120 kilometers) in the region that drains into the Ross Sea.


The lake, which is part of a broader water system under the ice, may well have the greatest chances of supporting microbial life, experts say. Hot-water drilling begins there in January.


Among the challenges: Lake Whillans lies under an ice stream, which is similar to a glacier but is underground and surrounded by ice on all sides. It moves slowly but constantly, and that complicates efforts to drill into the deepest—and most scientifically interesting—part of the lake.


Montana State's Priscu—currently back in the U.S. for medical reasons—said his team will bring a full lab to the Lake Whillans drilling site to study samples as they come up: something the Russians don't have the interest or capacity in doing and that the British will be trying in a more limited way. (Also see "Pictures: 'Extreme' Antarctic Science Revealed.")


So while the U.S. team may be the last of the three to penetrate their lake, they could be the first to announce the discovery of life in deep subglacial lakes.


"We should have a good idea of the abundance and type of life in the lake and sediments before we leave the site," said Priscu, who plans to return to Antarctica in early January if doctors allow.


"And we want to know as much as possible about how they make a living down there without energy from the sun and without nutrients most life-forms need."


All subglacial lakes are kept liquid by heat generated from the pressure of the heavy load of ice above them, and also from heat emanating from deeper in the Earth's crust.


In addition, the movement of glaciers and "ice streams" produces heat from friction, which at least temporarily results in a wet layer at the very bottom of the ice.


The Lake Whillans drilling is part of the larger Whillans Ice Stream Subglacial Access Research Drilling (WISSARD) project, first funded in 2009 by the U.S. National Science Foundation with funds from the American Recovery and Reinvestment Act.


That much larger effort will also study the ice streams that feed and leave the lake to learn more about another aspect of Antarctic dynamism: The recently discovered web of more than 360 lakes and untold streams and rivers—some nearing the size of the Amazon Basin—below the ice. (See "Chain of Cascading Lakes Discovered Under Antarctica.")


Helen Fricker, a member of the WISSARD team and a glaciologist at University of California, San Diego, said that scientists didn't begin to understand the vastness of Antarctica's subglacial water world until after the turn of the century.


That hidden, subterranean realm has "incredibly interesting and probably never classified biology," Fricker said.


"But it can also give us important answers about the climate history of the Earth, and clues about the future, too, as the climate changes."


Russia Returning to Successful Site


While both the U.S. and British teams have websites to keep people up to date on their work, the Russians do not, and have been generally quiet about their plans for this year.


The Russians have a team at Lake Vostok, the largest and deepest subglacial lake in Antarctica at more than 2.5 miles (4 kilometers) below the icy surface of the East Antarctic plateau.


The Vostok drilling began in the 1950s, well before anyone knew there was an enormous lake beneath the ice. The Russians finally and briefly pierced the lake early this year, before having to leave because of the cold. That breakthrough was portrayed at the time as a major national accomplishment.


According to Irina Alexhina, a Russian scientist with the Vostok team who was visiting the U.S. McMurdo Station last week, the Russian plan for this season focuses on extracting the ice core that rose in February when Vostok was breached. She said the team arrived this month and can stay through early February.


Preliminary results from the February breach report no signs of life on the drill bit that entered the water, but some evidence of life in small samples of the "accretion ice," which is frozen to the bottom of the lake, said Lake Vostok expert Sergey Bulat, of the Petersburg Nuclear Physics Institute, in May.


Both results are considered tentative because of the size of the sample and how they were retrieved. In addition, sampling water from the very top of Lake Vostok is far less likely to find organisms than farther down or in the bottom sediment, scientists say.


"It's like taking a scoop of water from the top of Lake Ontario and making conclusions about the lake based on that," said Priscu, who has worked with the Russians at Vostok.


He said he hopes to one day be part of a fully international team that will bring the most advanced drilling and sample collecting technology to Vostok.


Extreme Antarctic Microbes Found


Some results have already revealed life under the ice. A November study in the journal Proceedings of the National Academy of Sciences reported that subglacial Lake Vida—which is smaller and closer to the surface than other subglacial lakes—does indeed support a menagerie of strange and often unknown bacteria.


The microbes survive in water six times saltier than the oceans, with no oxygen, and with the highest level of nitrous oxide ever found in water on Earth, said study co-author Chris McKay, an astrobiologist at NASA's Ames Research Center.


"What Antarctica is telling us is that organisms can eke out a living in the most extreme of environments," said McKay, an expert in the search for life beyond Earth.


McKay called Lake Vida the closest analog found so far to the two ice and water moons in the solar system deemed most likely to support extraterrestrial life—Jupiter's Europa and Saturn's Enceladus.


But that "closest analog" designation may soon change. Life-forms found in Vostok, Ellsworth, or Whillans would all be living at a much greater depth than at Lake Vida—meaning that they'd have to contend with more pressure, more limited nutrients, and a source of energy entirely unrelated to the sun.


"Unique Moment in Antarctica"


The prospect of finding microscopic life in these extreme conditions may not seem to be such a big deal for understanding our planet—or the possibility of life on others. (See Antarctic pictures by National Geographic readers.)


But scientists point out that only bacteria and other microbes were present on Earth for 3 billion of the roughly 3.8 billion years that life has existed here. Our planet, however, had conditions that allowed those microbes to eventually evolve into more complex life and eventually into everything biological around us.


While other moons and planets in our solar system do not appear capable of supporting evolution, scientists say they may support—or have once supported—primitive microbial life.


And drilling into Antarctica's deep lakes could provide clues about where extraterrestrial microbes might live, and how they might be identified.


In addition, Priscu said there are scores of additional Antarctic targets to study to learn about extreme life, climate change, how glaciers move, and the dynamics of subterranean rivers and lakes.


"We actually know more about the surface of Mars than about these subglacial systems of Antarctica," he said. "That's why this work involves such important and most likely transformative science."


Mahlon "Chuck" Kennicutt, the just-retired president of the Scientific Committee on Antarctic Research, an international coordinating group, called this year "a unique moment in Antarctica."


"There's a growing understanding of the continent as a living, dynamic place—not a locked-in ice desert—and that has created real scientific excitement."


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Newtown Shooting: Bushmaster Under Fire













When the private investment firm Cerberus Capital Management announced Tuesday it would unload its interest in Bushmaster – the company that built the weapon used in last week's mass murder of 20 Connecticut first graders -- it marked the beginning of what experts say is likely to be a challenging period for the North Carolina-based weapons manufacturer.


"They are looking at a taint on their brand and looking at a marketplace that could change dramatically with respect to their weapon," said Chris Lehane, a crisis public relations expert who worked in the Clinton White House. "To me the fact that Cerberus is pulling out is a pretty significant defining moment."


For years, Bushmaster has been marketing itself to testosterone-fueled male customers, issuing "man cards" to customers who want to be "card carrying men." Now, Lehane and others said the company is facing the prospect of being branded the weapon of choice for mass killers. The Newtown, Connecticut shooting marked the fourth time a Bushmaster has been implicated in a mass shooting since 1999, including the Beltway sniper case that left 10 dead and three more wounded.


Cerberus announced Tuesday it wanted distance from Bushmaster, calling the murder of 20 first grade children at Sandy Hook Elementary School a "watershed event." The investment firm, which is chaired by former Vice President Dan Quayle, noted in its statement that Bushmaster may not be an investment consistent with the interests of its clients. Its investors include the pension plans of firemen, teachers, and policemen.






Rich Pedroncelli/AP Photo











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Lehane said the announcement could signal a shift in the way investors view companies that make military style weapons for a civilian market.


"It reminds me of the time when tobacco began to be associated with a negative light, or the divestiture movement surrounding companies in South Africa," he said. "Where financial markets believe they are going to pay a price."


In addition, a spokesman for Cerberus Group confirmed that the father of Stephen Feinberg, the founder of Cerberus Group, lives in Newtown.


Gun control groups have also lined up to criticize the weapons manufacturer, arguing that the company was selling civilian customers a weapon clearly designed for war.


"This thing is just a killing machine," said Josh Horwitz, executive director of the Coalition to Stop Gun Violence. "[I]t's a weapon that can easily shoot hundreds of … In fact it's very similar to the weapon that James Holmes used to shoot up the movie theater in Aurora."


The company has not responded to phone calls seeking comment, but gun enthusiasts say the weapon's menacing appearance can appeal to civilians looking for a means to secure their homes, and its ease of use can appeal to those looking for a weapon for target shooting.


"The [assault rifle] platform is the most popular in the country," said Frank Cornwall, a firearms instructor in Connecticut. "Civilians have always bought similar type arms to the military. And this is a very versatile platform. Quite a popular hunting and target shooting gun."


Phillip Stutts, a crisis management consultant who worked for President George W. Bush, said he has been surprised by the silence of the gun manufacturer.


"Bushmaster doesn't have to take responsibility for this tragedy, but they have a responsibility to respond to this tragedy," he said. "And they haven't. They have to get out in front of this. It needs to be corrected ASAP."






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Obama asks Cabinet members for proposals to curb gun violence



The effort will be led by Vice President Biden, according to two people outside the government who have spoken to senior administration officials since Friday, when a gunman killed his mother and rampaged through Sandy Hook Elementary School in Newtown, Conn., killing 20 children, six adults and himself.

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Tarantino film latest to be pulled after US shooting






LOS ANGELES: A Hollywood premiere of notoriously violent director Quentin Tarantino's latest film "Django Unchained" was canceled Monday, the latest such response to the Connecticut school massacre.

A string of movies and TV shows have been pulled or postponed since Friday's shootings, while sporting events have held moments of silence and players have worn black armbands to honor the victims, 20 of whom were young children.

The Weinstein Company said that a premiere scheduled Tuesday in Los Angeles of "Django Unchained" - which is due to open on Christmas Day in US theaters - had been called off.

"Our thoughts and prayers go out to the families of the tragedy in Newtown, Connecticut, and in this time of national mourning we have decided to forgo our scheduled event," said a Weinstein Company spokesperson.

The studio will still hold a screening for cast and crew and their friends and families, industry daily "Variety" reported.

Tarantino is known for screen violence, in movies from 1992's "Reservoir Dogs" to 2009's "Inglorious Basterds."

In his new film, a slave-turned-bounty hunter sets out to rescue his wife from a brutal plantation owner.

The move came after the weekend premiere of Tom Cruise's latest movie, "Jack Reacher" - about a homicide investigator probing a trained military sniper who shot five random victims - was postponed.

"Our hearts go out to all those who lost loved ones," said studio Paramount, adding that it took the action "out of honor and respect for the families of the victims whose lives were senselessly taken."

Fox canceled a weekend red carpet event and after-party for "Parental Guidance" starring Bette Midler and Billy Crystal "in light of the horrific tragedy."

The studio also replaced planned broadcasts Sunday of episodes of "Family Guy" and "American Dad" to avoid any insensitivities to the massacre.

A moment of silence was observed at National Football League (NFL) games across the country Sunday to remember those killed in the normally peaceful town of Newtown, Connecticut.

While some events were canceled because of content, others did not appear to be.

PG-rated "Parental Guidance" got its parental warning for some rude humor, not for violence, according to the IMDb industry website.

Veteran crooner Barry Manilow postponed a planned Friday night show in Palm Desert, California until Sunday, saying on his website: "Perhaps this small gesture of solidarity will help support these families on this terrible day."

Celebrities were quick to join online expressions of shock and sympathy.

Pop star Justin Bieber tweeted: "My prayers go out to all those suffering in this tragedy. it's just wrong. Everyone please pray for them."

"God have mercy!!!! No one deserves this! Praying for the families of the victims of the Connecticut shooting!! What a Christmas it will be," added singer Rihanna on the micro-blogging site.

- AFP/ha



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Fifth edition of ‘India Spells’ is here

NEW DELHI: 'IE' or 'EI' ? 'A' or 'AE' ? It's time for young spell-cats across the country to sharpen their skills. This will be the fifth season of 'HDFC Life Spell Bee - India Spells 2013', the Indian counterpart of the highly acclaimed Scripps Spelling Bee, USA. With the theme 'Celebrate Words. Save the Language,' the spelling extravaganza will travel to 35 cities and reach out to more than 5,00,000 students. This is an initiative of the Times Group under the patronage of Scripps National Spelling Bee.

The four-phase contest starts at school level. Winners then participate in a city-level final round. This year the contest will include a semifinal round after the city finals. The national finals will be telecast on Discovery. Open to students from Class V to IX, the prelims at the school level will be an MCQ (multiple-choice questions) test of 50 words. Top scorers from about 1000 schools in 33 cities will be selected for the city finals.

Students can also apply online at www.spellbeeindia.in. Top scorers from the online test will also be invited to Phase II of the competition. If a student belongs to a city that is not part of Spell Bee's Phase I, they can participate by taking the online test and choosing their preferred city for participation in the second phase. The city final has three rounds; the final round is a knockout among four finalists. The winner and the runner-up qualify for the semifinals — an online test.

Students with the top 16 scores across the country will qualify for the national finals in Mumbai. The finals will be a two-round process held over three days in 'four episodes'. The 16 finalists will be divided into groups of four each. The winner from each group will move into the second round: the grand finale. The winner among the four will be declared 'Spell Bee - India Spells 2013 National Champion'. The four group winners win Rs 50,000 each and the national winner receives Rs 2,00,000 from HDFC Life. The national champion will be taken to Washington DC along with a parent and the school principal to witness the Scripps National Spelling Bee 2013. The trip will be sponsored by Radio Mirchi.

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GRAIL Mission Goes Out With a Bang

Jane J. Lee


On Friday, December 14, NASA sent their latest moon mission into a death spiral. Rocket burns nudged GRAIL probes Ebb and Flow into a new orbit designed to crash them into the side of a mountain near the moon's north pole today at around 2:28 p.m. Pacific standard time. NASA named the crash site after late astronaut Sally Ride, America's first woman in space.

Although the mountain is located on the nearside of the moon, there won't be any pictures because the area will be shadowed, according to a statement from NASA' Jet Propulsion Laboratory in California.

Originally sent to map the moon's gravity field, Ebb and Flow join a long list of man-made objects that have succumbed to a deadly lunar attraction. Decades of exploration have left a trail of debris intentionally crashed, accidentally hurtled, or deliberately left on the moon's surface. Some notable examples include:

Ranger 4 - Part of NASA's first attempt to snap close-up pictures of the moon, the Ranger program did not start off well. Rangers 1 through 6 all failed, although Ranger 4, launched April 23, 1962, did make it as far as the moon. Sadly, onboard computer failures kept number 4 from sending back any pictures before it crashed. (See a map of all artifacts on the moon.)

Fallen astronaut statue - This 3.5-inch-tall aluminum figure commemorates the 14 astronauts and cosmonauts who had died prior to the Apollo 15 mission. That crew left it behind in 1971, and NASA wasn't aware of what the astronauts had done until a post-flight press conference.

Lunar yard sale - Objects jettisoned by Apollo crews over the years include a television camera, earplugs, two "urine collection assemblies," and tools that include tongs and a hammer. Astronauts left them because they needed to shed weight in order to make it back to Earth on their remaining fuel supply, said archivist Colin Fries of the NASA History Program Office.

Luna 10 - A Soviet satellite that crashed after successfully orbiting the moon, Luna 10 was the first man-made object to orbit a celestial body other than Earth. Its Russian controllers had programmed it to broadcast the Communist anthem "Internationale" live to the Communist Party Congress on April 4, 1966. Worried that the live broadcast could fail, they decided to broadcast a recording of the satellite's test run the night before—a fact they revealed 30 years later.

Radio Astronomy Explorer B - The U.S. launched this enormous instrument, also known as Explorer 49, into a lunar orbit in 1973. At 600 feet (183 meters) across, it's the largest man-made object to enter orbit around the moon. Researchers sent it into its lunar orbit so it could take measurements of the planets, the sun, and the galaxy free from terrestrial radio interference. NASA lost contact with the satellite in 1977, and it's presumed to have crashed into the moon.

(Learn about lunar exploration.)


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Conn. Kids Laid to Rest: 'Our Hearts Are With You'













Visibly shaken attendees exiting the funeral today for 6-year-old Noah Pozner, one of 20 children killed in the Connecticut school massacre last week, said they were touched by a story that summed up the first-grader best.


His mother, Veronique, would often tell him how much she loved him and he'd respond: "Not as much as I [love] you," said a New York man who attended the funeral but was not a member of the family.


Noah's family had been scheduled to greet the public before the funeral service began at 1 p.m. at the Abraham L. Green & Son Funeral Home in Fairfield, Conn. The burial was to follow at the B'nai Israel Cemetery in Monroe, Conn. Those present said they were in awe at the composure of Noah's mother.


Rabbi Edgar Gluck, who attended the service, said the first person to speak was Noah's mother, who told mourners that her son's ambition when he grew up was to be either a director of a plant that makes tacos -- because that was his favorite food -- or to be a doctor.


Outside the funeral home, a small memorial lay with a sign reading: "Our hearts are with you, Noah." A red rose was also left behind along with two teddy bears with white flowers and a blue toy car with a note saying "Noah, rest in peace."


CLICK HERE for complete coverage of the tragedy at Sandy Hook.






Don Emmert/AFP/Getty Images











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The funeral home was adorned with white balloons as members of the surrounding communities came also to pay their respects, which included a rabbi from Bridgeport. More than a dozen police officers were at the front of the funeral home, and an ambulance was on standby at a gas station at the corner.


U.S. Sen. Richard Blumenthal, U.S. Rep. and Sen.-Elect Chris Murphy and Gov. Dannel P. Malloy, all of Connecticut, were in attendance, the Connecticut Post reported.


Noah was an inquisitive boy who liked to figure out how things worked mechanically, The Associated Press reported. His twin sister, Arielle, was one of the students who survived when her teacher hid her class in the bathroom during the attack.


CLICK HERE for a tribute to the shooting victims.


The twins celebrated their sixth birthday last month. Noah's uncle Alexis Haller told the AP that he was "smart as a whip," gentle but with a rambunctious streak. He called his twin sister his best friend.


"They were always playing together, they loved to do things together," Haller said.


The funeral for Jack Pinto, 6, was also held today, at the Honan Funeral Home in Newtown. He was to be buried at Newtown Village Cemetery.


Jack's family said he loved football, skiing, wrestling and reading, and he also loved his school. Friends from his wrestling team attended his funeral today in their uniforms. One mourner said the message during the service was: "You're secure now. The worst is over."


Family members say they are not dwelling on his death, but instead on the gift of his life that they will cherish.


The family released a statement, saying, Jack was an "inspiration to all those who knew him."


"He had a wide smile that would simply light up the room and while we are all uncertain as to how we will ever cope without him, we choose to remember and celebrate his life," the statement said. "Not dwelling on the loss but instead on the gift that we were given and will forever cherish in our hearts forever."


Jack and Noah were two of 20 children killed Friday morning at Sandy Hook Elementary School in Newtown, Conn., when 20-year-old Adam Lanza sprayed two first-grade classrooms with bullets that also killed six adults.






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Obama vows to push for changes to prevent massacres



Yet Obama did more than act as mourner-in-chief at an interfaith vigil here Sunday night: He also vowed, in an angry tone that defined much of his speech, to use “whatever power this office holds” to enact changes aimed at preventing future massacres.

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Karena Lam pregnant again






HONG KONG: Hong Kong actress Karena Lam revealed Saturday during a publicity event that she is pregnant with her second child, reported Hong Kong media.

The actress, who is married to advertisement director Steve Yuen, gave birth to their first, daughter Kayla, in 2010.

Lam expressed that she has asked actor Ekin Cheng, who was also at the event, to be her unborn child's godfather.

"We are discussing whether I can be the child's godfather, but we'll have to ask her husband first," said Cheng, adding that he hoped it will be a boy, and would teach the child martial arts if it turns out to be a boy.

"If it's a boy, I hope he is not as naughty as you," Lam quipped.

Cheng appeared very happy for his old friend, and posed like a pregnant mother in a goofy photo with her, which she promptly put up on her micro blog.

-CNA/ha



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Railways to adopt PPP mode for modernization: Bansal

SANGRUR: Union railway minister Pawan Bansal said on Sunday that public private partnership (PPP) mode would be adopted for modernizing and upgrading the railway infrastructure.

The minister, who was in Sangrur and Barnala districts of Punjab to lay the foundation stones for new railway projects, said that Rs 1.10 lakh crore would be generated through PPP mode for implementing the revamping plan.

"Railways is failing in mobilizing the required funds through internal sources. The annual plan for the ongoing fiscal has been cut short by over Rs 4,000 crore and the plan outlay has been reduced from earlier Rs 60,100 crore to Rs 55,900 crore," he said.

Bansal, who belongs to Tapa town of Barnala district, said, "The railways has chalked out ambitious plans for doubling the tracks, electrification, laying of new railway lines and manufacture of coaches in the next five years. All this will be done on PPP mode."

Bansal said that railways will need about 30,000 more coaches in the coming years and for this, all the states have been asked to provide land on which railways will set up coach factories.

"Both Punjab and Haryana have already shown keen interest in the plan," said Bansal.

He said that presently, there are 14,000 unmanned railway crossings in India and the railways is inching towards making these manned in a phased manner.

Bansal said that the Kolkata-Ludhiana and Delhi-Mumbai freight corridors will be completed during the next five years.

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