In this July 27, 2005, photo, FBI Agent Frederick Humphries listens during a news conference after the sentencing of Ahmed Ressam at the Federal Courthouse in Seattle. Humphries has been identified as the agent socialite Jill Kelley contacted to complain about harassing emails sent by Gen. David Petraeus' paramour, Paula Broadwell. (AP Photo/Kevin P. Casey)
**FILE** FBI Director Robert S. Mueller III testifies on May 16, 2012, on Capitol Hill before the Senate Judiciary Committee. (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)
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)
Paula Broadwell holds a drink in the kitchen of her brother's house in Washington, Tuesday, Nov. 13, 2012. Broadwell is CIA Director David Petraeus' biographer, with whom he had an affair that led to his abrupt resignation last Friday. It was Broadwell's threatening emails to Jill Kelley, a Florida woman who is a Petraeus family friend, that led to the FBI's discovery of communications between Broadwell and Petraeus indicating they were having an affair. (AP Photo/Cliff Owen)
**FILE** FBI Director Robert Mueller confers with an aide on Capitol Hill in Washington on May 16, 2012, prior to testifying before the Senate Judiciary Committee hearing: "Oversight of the Federal Bureau of Investigation." (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., on Nov. 13, 2012. (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)
FBI agents take photographs around 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., on Nov. 12, 2012. FBI agents appeared at Broadwell's home carrying the kinds of cardboard boxes often used for evidence gathering during a search. A spokeswoman for the FBI declined to say what the agents were doing there. (Associated Press/The Charlotte Observer)
