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WASHINGTON, DC - MAY 1: (EDITORS NOTE: Please be advised that a classified document visible in this photo was obscured by The White House) In this handout image provided by The White House, President Barack Obama, Vice President Joe Biden, Secretary of State Hillary Clinton and members of the national security team receive an update on the mission against Osama bin Laden in the Situation Room of the White House May 1, 2011 in Washington, DC. Obama later announced that the United States had killed Bin Laden in an operation led by U.S. Special Forces at a compound in Abbottabad, Pakistan. (Photo by Pete Souza/The White House via Getty Images)

WASHINGTON, DC - MAY 1:  (EDITORS NOTE: Please be advised that a classified document visible in this photo was obscured by The White House) In this handout image provided by The White House, President Barack Obama, Vice President Joe Biden, Secretary of State Hillary Clinton and members of the national security team receive an update on the mission against Osama bin Laden in the Situation Room of the White House May 1, 2011 in Washington, DC. Obama later announced that the United States had killed Bin Laden in an operation led by U.S. Special Forces at a compound in Abbottabad, Pakistan.  (Photo by Pete Souza/The White House via Getty Images)

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WASHINGTON, DC - MAY 1: In this handout image provided by The White House, President Barack Obama listens during one in a series of meetings discussing the mission against Osama bin Laden, in the Situation Room of the White House, May 1, 2011 in Washington, DC. U.S. President Barack Obama announced that the United States had killed the most-wanted terrorist Osama Bin Laden in an operation led by U.S. Special Forces at a compound in Abbottabad, Pakistan. (Photo by Pete Souza/The White House via Getty Images)

WASHINGTON, DC - MAY 1:  In this handout image provided by The White House, President Barack Obama listens during one in a series of meetings discussing the mission against Osama bin Laden, in the Situation Room of the White House, May 1, 2011 in Washington, DC. U.S. President Barack Obama announced that the United States had killed the most-wanted terrorist Osama Bin Laden in an operation led by U.S. Special Forces at a compound in Abbottabad, Pakistan.  (Photo by Pete Souza/The White House via Getty Images)

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WASHINGTON, DC - MAY 1: In this handout image provided by The White House, President Barack Obama talks with members of the national security team at the conclusion of one in a series of meetings discussing the mission against Osama bin Laden, in the Situation Room of the White House, May 1, 2011 in Washington, DC. U.S. President Barack Obama announced that the United States had killed the most-wanted terrorist Osama Bin Laden in an operation led by U.S. Special Forces at a compound in Abbottabad, Pakistan. (Photo by Pete Souza/The White House via Getty Images)

WASHINGTON, DC - MAY 1:  In this handout image provided by The White House, President Barack Obama talks with members of the national security team at the conclusion of one in a series of meetings discussing the mission against Osama bin Laden, in the Situation Room of the White House, May 1, 2011 in Washington, DC. U.S. President Barack Obama announced that the United States had killed the most-wanted terrorist Osama Bin Laden in an operation led by U.S. Special Forces at a compound in Abbottabad, Pakistan.  (Photo by Pete Souza/The White House via Getty Images)

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WASHINGTON, DC - AUGUST 31: In this handout provided by the White House, U.S. President Barack Obama (C) meets in the Situation Room with his national security advisors to discuss strategy in Syria of the White House August 31, 2013 in Washington, DC. Obama stated that he will seek Congressional authorization for the U.S. to take military action following the alleged Sarin nerve gas used in an attack on Syrian civilians. (Photo by Pete Souza/White House via Getty Images)

WASHINGTON, DC - AUGUST 31:  In this handout provided by the White House, U.S. President Barack Obama (C) meets in the Situation Room with his national security advisors to discuss strategy in Syria of the White House August 31, 2013 in Washington, DC. Obama stated that he will seek Congressional authorization for the U.S. to take military action following the alleged Sarin nerve gas used in an attack on Syrian civilians.  (Photo by Pete Souza/White House via Getty Images)

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WASHINGTON, DC - MAY 1: In this handout image provided by The White House, President Barack Obama shakes hands with Admiral Mike Mullen, Chairman of the Joint Chiefs of Staff, in the Green Room of the White House, following his statement detailing the mission against Osama bin Laden, May 1, 2011 in Washington, DC. CIA Director Leon Panetta and Secretary of State Hillary Rodham Clinton are pictured at left. U.S. President Barack Obama announced that the United States had killed the most-wanted terrorist Osama Bin Laden in an operation led by U.S. Special Forces at a compound in Abbottabad, Pakistan. (Photo by Pete Souza/The White House via Getty Images)

WASHINGTON, DC - MAY 1:  In this handout image provided by The White House, President Barack Obama shakes hands with Admiral Mike Mullen, Chairman of the Joint Chiefs of Staff, in the Green Room of the White House, following his statement detailing the mission against Osama bin Laden, May 1, 2011 in Washington, DC. CIA Director Leon Panetta and Secretary of State Hillary Rodham Clinton are pictured at left. U.S. President Barack Obama announced that the United States had killed the most-wanted terrorist Osama Bin Laden in an operation led by U.S. Special Forces at a compound in Abbottabad, Pakistan.  (Photo by Pete Souza/The White House via Getty Images)