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In this Tuesday, Feb. 24, 2009 file photo, people wait in line to talk to career counselors at a crowded job fair in New York. Thousands waited in line for two or more hours to enter the fair where about forty employers were talking to perspective hires. (AP Photo/Seth Wenig)

In this Wednesday, Sept. 12, 2012 file photo, two women hold signs in support of public school teachers marching on streets surrounding John Marshall Metropolitan High School in West Chicago. Teachers walked off the job Monday for the first time in 25 years over issues that include pay raises, classroom conditions, job security and teacher evaluations. (AP Photo/Sitthixay Ditthavong)

In this Nov. 30, 2012 file photo, 1st Lt. Aaron Dunn enters his home before sunrise on the morning of his return from a deployment in Afghanistan, in Fountain, Colo. Many soldiers returning home after long deployments describe the change as welcome, but also overwhelming at first. (AP Photo/Brennan Linsley)

In this Friday, May 7, 2010 file photo, armed officers from the New York Police Department's Emergency Service Unit make a routine appearance in the financial district in New York. In the wake of Saturday night's failed car bombing in Times Square, jittery authorities are pouncing on anything suspicious and overwrought headlines are keeping the city on edge. A statue of George Washington, left, stands in front of Federal Hall. (AP Photo/Peter Morgan)

In this Wednesday, Dec. 19, 2012 file photo, a clerk peers out from a gun shop in Seattle. The reaction to the Connecticut school shooting can be seen in gun stores and self-defense retailers across the nation: Anxious parents are fueling sales of armored backpacks for children while firearms enthusiasts are stocking up on assault rifles in anticipation of tighter gun control measures. (AP Photo/Elaine Thompson)

In this Sept. 15, 2011 file photo, Bill Ricker, 74, looks out of the screen door of his trailer home on a rainy day, in Hartford, Maine. Ricker, who has two college degrees, has worked as an electronics repairman, a pastor and a TV cameraman. He and his first wife had seven children. Now he receives food stamps and heating fuel assistance and gets donations from a local food pantry. (AP Photo/Robert F. Bukaty)

In this Tuesday, Feb. 21, 2012 file photo, a trader works on the floor at the New York Stock Exchange in New York. (AP Photo/Seth Wenig)

In this Saturday, May 19, 2012 file photo, Occupy Chicago protesters, some wearing masks, sit in the street outside Mayor Rahm Emaunel's house during a march and demonstration in Chicago, host of a NATO summit where delegations from about 60 countries will discuss the war in Afghanistan and European missile defense. (AP Photo/Charles Rex Arbogast)

In this Thursday, Jan. 3, 2013 file photo, a clerk walks past a portrait of Confederate Gen. Robert E. Lee in the rotunda of the Georgia State Capitol in Atlanta. (AP Photo/David Goldman)

In this Wednesday, Jan. 4, 2012 file photo, tea party supporter William Temple, of Brunswick, Ga., dressed in a Revolutionary War-era military uniform sits in the Des Moines Airport waiting to fly home after the Iowa caucus in Des Moines, Iowa. (AP Photo/Evan Vucci)

In this Friday, Sept. 28, 2012 file photo, Dharma Bohall, 13, raises her arms in prayer during the America for Jesus prayer rally on Independence Mall in Philadelphia. Christian conservatives who blame "moral depravity" for everything from the recession to terrorism are converging on Philadelphia for a rally they hope will spark a religious revival as Election Day nears. (AP Photo/Joseph Kaczmarek)

In this Thursday, July 12, 2012 file photo, Joe Fischer checks on his corn field in Owensboro, Ky. "We've been in a drought for the last three weeks," he said. Fischer farms the property with his brother Tony Fischer. They planted 900 acres of corn with 30,000 plants per acre. "We have no idea what our yield will be," Joe Fischer said. U.S. Agriculture Secretary Tom Vilsack designated 26 Kentucky counties among more than 900 counties in 29 states as disaster areas. (AP Photo/Messenger-Inquirer, John Dunham)

In this March 25, 2009 file photo, Allison Kimble holds her head in her hands while she and her husband Scott read over a school application for their daughter in Perry County, Tenn. Both parents have lost their auto-related jobs. In small communities like Perry County, the loss of auto plant supplier jobs has pushed unemployment to a Depression-level 25.4 percent, the fourth-highest rate among U.S. counties in March. (AP Photo/Josh Anderson)

In this Sunday, Dec. 16, 2012 file photo, mourners arrive in a school bus at Newtown High School for a memorial vigil attended by President Barack Obama for the victims of the Sandy Hook School shooting in Newtown, Conn. A gunman walked into the elementary school Friday and opened fire, killing 26 people, including 20 children. (AP Photo/David Goldman)