
**FILE** John Brennan, then-nominee for CIA director, testifies Feb. 7, 2013, on Capitol Hill in Washington during his confirmation hearing before the Senate Intelligence Committee. (Associated Press)

An email from then-CIA Director David Petraeus is among the 99 pages of emails regarding Benghazi released by the White House on May 15, 2013. Petraeus objected to the final talking points that U.N. Ambassador Susan Rice used five days after the deadly assault on a U.S. diplomatic post in Benghazi, Libya. The White House released 99 pages of emails and a single page of hand-written notes made by Petraeus' deputy, Mike Morell, after a meeting at the White House the day before Rice's appearance. (Associated Press)

An email from then-CIA Director David Petraeus is among the 99 pages of emails regarding Benghazi released by the White House on May 15, 2013. Petraeus objected to the final talking points that U.N. Ambassador Susan Rice used five days after the deadly assault on a U.S. diplomatic post in Benghazi, Libya. The White House released 99 pages of emails and a single page of hand-written notes made by Petraeus' deputy, Mike Morell, after a meeting at the White House the day before Rice's appearance. (Associated Press)

FBI agents carry boxes and a computer from the home of Paula Broadwell, the woman whose affair with retired Gen. David Petraeus led to his resignation as CIA director, in the Dilworth neighborhood of Charlotte, N.C., Tuesday, Nov. 13, 2012. (AP Photo/Chuck Burton)

In this handout photo provided by the FSB, acronym for Russian Federal Security Service, a man claimed by FSB to be Ryan Fogle, right, a third secretary at the U.S. Embassy in Moscow, with Embassy officials at left, sits in the the FSB offices in Moscow, early Tuesday, May 14, 2013. Russia's security services say they have caught a U.S. diplomat who they claim is a CIA agent in a red-handed attempt to recruit a Russian agent. (AP Photo/FSB Public Relations Center)

In this handout photo provided by the FSB, acronym for Russian Federal Security Service, a man claimed by FSB to be Ryan Fogle, right, a third secretary at the U.S. Embassy in Moscow, with Embassy officials at left, sits in the the FSB offices in Moscow, early Tuesday, May 14, 2013. Russia's security services say they have caught a U.S. diplomat who they claim is a CIA agent in a red-handed attempt to recruit a Russian agent. (AP Photo/FSB Public Relations Center)

In this handout photo provided by the FSB, acronym for Russian Federal Security Service, a man claimed by FSB to be Ryan Fogle, right, a third secretary at the U.S. Embassy in Moscow, with Embassy officials at left, sits in the the FSB offices in Moscow, early Tuesday, May 14, 2013. Russia's security services say they have caught a U.S. diplomat who they claim is a CIA agent in a red-handed attempt to recruit a Russian agent. (AP Photo/FSB Public Relations Center)

In this handout photo provided by the FSB, acronym for Russian Federal Security Service, a man claimed by FSB to be Ryan Fogle, a third secretary at the U.S. Embassy in Moscow, is detained in Moscow, early Tuesday, May 14, 2013. Russia's security services say they have caught a U.S. diplomat who they claim is a CIA agent in a red-handed attempt to recruit a Russian agent. (AP Photo/FSB Public Relations Center)

** FILE ** CIA Director David H. Petraeus testifies on Feb. 2, 2012, on Capitol Hill in Washington. (Associated Press)