Politics

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Video posted by Boko Haram sympathizers shows the leader of the radical Islamist sect, Imam Abubakar Shekau. The Associated Press cannot independently verify the content, date, location or authenticity of this material.

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Lt. Col. Matthew Dooley was publicly condemned for training materials that were deemed "academically irresponsible" and was removed as a commander candidate. (Photo courtesy of the U.S. Army)

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Citizens Hearing on Disclosure organizer Stephen Bassett has assembled five former lawmakers and 40 witnesses to demand government transparency in extraterrestrial matters.

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President Obama acknowledges late-night television host and comedian Conan O'Brien during the White House Correspondents' Association Dinner at the Washington Hilton Hotel on Saturday, April 27, 2013, in Washington. (AP Photo/Carolyn Kaster)

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President Obama, flanked by Michael Clemente (left), executive vice president of Fox News, and White House Correspondents' Association President Ed Henry (right), chief White House correspondent for Fox News, waves to the audience after speaking at the White House Correspondents' Association Dinner at the Washington Hilton Hotel on Saturday, April 27, 2013, in Washington. (AP Photo/Carolyn Kaster)

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Late-night television host and comedian Conan O'Brien gestures as he speaks during the White House Correspondents' Association Dinner at the Washington Hilton Hotel on Saturday, April 27, 2013, in Washington. (AP Photo/Carolyn Kaster)

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Late-night television host and comedian Conan O'Brien holds a gavel as he speaks during the White House Correspondents' Association Dinner at the Washington Hilton Hotel on Saturday, April 27, 2013, in Washington. (AP Photo/Carolyn Kaster)

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Late-night television host and comedian Conan O'Brien (from left); first lady Michelle Obama; Michael Clemente, executive vice president of Fox News; and President Obama attend the White House Correspondents' Association Dinner at the Washington Hilton Hotel on Saturday, April 27, 2013, in Washington. (AP Photo/Carolyn Kaster)

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President Obama (left) and White House Correspondents' Association President Ed Henry (center), chief White House correspondent for Fox News, laugh as late-night television host and comedian Conan O'Brien speaks during the White House Correspondents' Association Dinner at the Washington Hilton Hotel on Saturday, April 27, 2013, in Washington. (AP Photo/Carolyn Kaster)

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Rep. Edward R. Royce (right) speaks with representatives of The Washington Times at the newspaper's reception at the White House Correspondents' Association Dinner at the Washington Hilton Hotel in Washington on Saturday, April 27, 2013. (Andrew S. Geraci/The Washington Times)

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David Keene (left), president of the National Rifle Association, mingles with guests and representatives of The Washington Times at the newspaper's reception at the White House Correspondents' Association Dinner at the Washington Hilton Hotel in Washington on Saturday, April 27, 2013. (Andrew S. Geraci/The Washington Times)

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Washington Nationals pitcher Gio Gonzalez speaks with Washington Times Editor David S. Jackson at the newspaper's reception at the White House Correspondents' Association Dinner at the Washington Hilton Hotel in Washington on Saturday, April 27, 2013. (Andrew S. Geraci/The Washington Times)

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Emily Miller, senior opinion editor of The Washington Times, greets David Keene, president of the National Rifle Association, at the newspaper's reception at the White House Correspondents' Association Dinner at the Washington Hilton Hotel in Washington on Saturday, April 27, 2013. (Andrew S. Geraci/The Washington Times)

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Guest mingle at The Washington Times' reception at the White House Correspondents' Association Dinner at the Washington Hilton Hotel in Washington on Saturday, April 27, 2013. (Andrew S. Geraci/The Washington Times)