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Posted: 5/5/2013 1:03:31 PM EST
President Barack Obama laughs as he walks to board Air Force One, Sunday, May 5, 2013, in Andrews Air Force Base, Md., en route to speak at the Ohio State University spring commencement, in Columbus, Ohio. (AP Photo/Carolyn Kaster)
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Posted: 5/5/2013 1:03:31 PM EST
President Barack Obama greets people waiting for him on the tarmac as he arrives on Air Force One at Rickenbacker International Airport, Sunday, May 5, 2013, in Columbus, Ohio, en route to speak at the Ohio State University spring commencement. (AP Photo/Carolyn Kaster)
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Posted: 5/5/2013 11:08:25 AM EST
University of Iowa anthropologist Cristina Ortiz writes on a dry erase board as she teaches an ESL class, in Columbus Junction, Iowa on Wednesday, April 17, 2013. Tyson Food's decision to recruit Burmese refugees marks a new chapter in this southeast Iowa meatpacking town. (AP Photo/Charlie Neibergall)
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Posted: 5/5/2013 11:08:25 AM EST
University of Iowa anthropologist Cristina Ortiz, left, writes on a dry erase board as she teaches an ESL class to Xocnitl Hernandez, in Columbus Junction, Iowa on Wednesday, April 17, 2013. Ortiz, who moved to Columbus Junction four years ago to study the town, says both the Chin and Spanish-speaking communities feel that more Chin are being hired at the expense of Latinos, which has created some friction. "Latinos and Chin people recognize they both have the same goals in life," she says. "That is to make their lives better and provide for their families and live a tranquil life. But in a certain sense, they are in competition with each other. They are applying for the same jobs. They have the same skills. And that’s tricky. Obviously there is some tension there." (AP Photo/Charlie Neibergall)
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Posted: 5/5/2013 11:08:24 AM EST
This Wednesday, April 17, 2013 photo shows the Tyson Foods pork processing plant in Columbus Junction, Iowa. Tyson and other meatpacking companies have increasingly recruited non-Latino workers in recent years, including Burmese, Sudanese and others, said Mark Grey, director of the Iowa Center for Immigrant Leadership and Integration at University of Northern Iowa. (AP Photo/Charlie Neibergall)
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Posted: 5/5/2013 9:03:38 AM EST
FILE - In this Sept. 26, 2012, file photo President Barack Obama campaigns at Bowling Green State University in Bowling Green, Ohio. Absent a magic potion or explosive economic growth, it was all but inevitable President Barack Obama would have to break some of his campaign promises to keep others. If there's one thing that distinguished them besides their ambition, it was their incompatibility. (AP Photo/Pablo Martinez Monsivais, File)
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Posted: 5/4/2013 7:38:21 PM EST
Texas A&M University freshman Heather Warfield collects baseball cards Saturday, May 4, 2013, from a nearby apartment complex in West, Texas, that was damaged due to the explosion at a fertilizer plant in West on April 17. More than 124 students donated their time to help cleanup parts of West devastated by the fertilizer plant explosion. The plant exploded during a fire, killing at least 14 people and injuring about 200. (AP Photo/Waco Tribune Herald, Rod Aydelotte)
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Posted: 5/4/2013 6:53:43 PM EST
Rainn Wilson, from "The Office" is surrounded by fans during the parade from the University of Scranton to Courthouse Square, as part of "The Office" Wrap Party, Saturday, May 4, 2013, in Scranton, Pa. The NBC mockumentary about cubicle-dwellers at the fictional Dunder Mifflin wraps up May 16, and thousands attended the "Wrap Party" on Saturday. (AP Photo/Scranton Times & Tribune, Jason Farmer)
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Posted: 5/4/2013 4:09:04 PM EST
President Barack Obama, right, shakes hands with INCAE University President Arturo Condo at the end of an Inclusive Economic Growth and Development forum in San Jose, Costa Rica, Saturday, May 4, 2013. (AP Photo/Moises Castillo)
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Posted: 5/4/2013 1:58:36 PM EST
U.S. President Barack Obama, INCAE University President Arturo Condo, right, Costa Rica’s President Laura Chinchilla, right, participate in a forum on Inclusive Economic Growth and Development at the Old Custom House in San Jose, Costa Rica, Saturday, May 4, 2013. (AP Photo/Pablo Martinez Monsivais)
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Posted: 5/4/2013 1:53:17 PM EST
U.S. President Barack Obama, center, is introduced at a forum on Inclusive Economic Growth and Development at the Old Custom House in San Jose, Costa Rica, Saturday, May 4, 2013. On stage with Obama are INCAE University President Arturo Condo, left, and Costa Rica’s President Laura Chinchilla, right. (AP Photo/Pablo Martinez Monsivais)
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Posted: 5/4/2013 12:13:29 PM EST
Holly Peterson, who plays professional women's tackle football for the Sacramento Sirens, holds a basketball in Elk Grove, Calif. on Friday, May 3, 2013. Peterson, who played college basketball at the University of California, Riverside, came out as a lesbian at age 15, when she was playing high school basketball. (AP Photo/Rich Pedroncelli)
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Posted: 5/4/2013 12:03:28 PM EST
Jonathan Jean-Pierre, 19, a sophomore and rower at Lehigh University in Bethlehem, Pa. is photographed on campus on Friday, May 3, 2013. Jonathan came out as a gay man during his freshman year and is among college athletes who have been invited to attend the Nike LGBT Sports Summit in June 2013 in Portland, Ore. (AP Photo/Rich Schultz)
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Posted: 5/4/2013 12:03:28 PM EST
FILE - In this July 2, 1963 file photo, Billie Jean King, 19, of Long Beach, Calif., plays former champion Maria Bueno of Brazil during their women's singles quarter finals match at Wimbledon, England. Ellen Staurowsky, a professor of sport management at Drexel University in Philadelphia, says awareness of homosexuality in athletics started to grow, slowly in the 1970s on college campuses. Then in the early 1980s, King was outed, and Martina Navratilova also came out as a lesbian. (AP Photo)
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Posted: 5/4/2013 12:03:28 PM EST
Jonathan Jean-Pierre, a sophomore and rower at Lehigh University in Bethlehem, Pa. sits on steps at the campus on Friday, May 3, 2013. Jean-Pierre, says his teammates have never given him any trouble about being gay. "But sometimes I still feel like I have to work twice as hard to prove myself," says the 19-year-old athlete, who plans to discuss these and other issues as a participant of a summit for gay and lesbian athletes in June 2013. (AP Photo/Rich Schultz)
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Posted: 5/4/2013 12:03:28 PM EST
Jonathan Jean-Pierre, 19, a sophomore and rower at Lehigh University in Bethlehem, Pa. is photographed on campus on Friday, May 3, 2013. Jonathan came out as a gay man during his freshman year and is among college athletes who've been invited to attend the Nike LGBT Sports Summit in June 2013 in Portland, Ore. (AP Photo/Rich Schultz)
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Posted: 5/4/2013 7:52:29 AM EST
Britain's Prime Minister David Cameron listens during a meeting with scientists before opening the 'Li Ka-shing Centre for Health Information and Discovery' at Oxford University in Oxford, southern England May 3, 2013. REUTERS/Oli Scarff/Pool
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Posted: 5/4/2013 7:52:29 AM EST
Britain's Prime Minister David Cameron listens during a meeting with scientists before opening the 'Li Ka-shing Centre for Health Information and Discovery' at Oxford University in Oxford, southern England May 3, 2013. REUTERS/Oli Scarff/Pool
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Posted: 5/3/2013 3:34:55 PM EST
A cancer patient is seen through the tube of a magnetic resonance imaging scanner as she prepares to enter the MRI machine for an examination at Georgetown University Hospital in Washington May 23, 2007. REUTERS/Jim Bourg
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Posted: 5/3/2013 11:53:36 AM EST
A firefighter puts out a fire while the mobile homes are burning after after a blaze broke out during morning rush hour along U.S. 101 in the Camarillo area about 50 miles west of Los Angeles, May. 2, 2013, in Camarillo, Calif. A wildfire fanned by gusty Santa Ana winds raged along the fringes of Southern California communities on Thursday, forcing evacuation of homes and a university while setting recreational vehicles ablaze. (AP Photo/Ringo H.W. Chiu)