Secretary of State Hillary Rodham Clinton takes her seat on on Capitol Hill in Washington, Wednesday, Jan. 23, 2013, prior to testifying before the Senate Foreign Relations Committee hearing on the deadly September attack on the U.S. diplomatic mission in Benghazi, Libya, that killed Ambassador Chris Stevens and three other Americans. (AP Photo/J. Scott Applewhite)

Associated Press
Secretary of State Hillary Rodham Clinton takes her seat on on Capitol Hill in Washington,  Wednesday, Jan. 23, 2013, prior to testifying before the Senate Foreign Relations Committee hearing on the deadly September attack on the U.S. diplomatic mission in Benghazi, Libya, that killed Ambassador Chris Stevens and three other Americans.  (AP Photo/J. Scott Applewhite)
Secretary of State Hillary Rodham Clinton takes her seat on on Capitol Hill in Washington, Wednesday, Jan. 23, 2013, prior to testifying before the Senate Foreign Relations Committee hearing on the deadly September attack on the U.S. diplomatic mission in Benghazi, Libya, that killed Ambassador Chris Stevens and three other Americans. (AP Photo/J. Scott Applewhite)
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