In this June 29, 2010 file photo, Gen. David Petraeus testifies before the Senate Armed Services Committee on Capitol Hill in Washington. Petraeus, the retired four-star general who led the U.S. military campaigns in Iraq and Afghanistan, resigned Friday, Nov. 9, 2012 as director of the CIA after admitting he had an extramarital affair. (AP Photo/Pablo Martinez Monsivais, File)

Photo by: Pablo Martinez Monsivais

In this June 29, 2010 file photo, Gen. David Petraeus testifies before the Senate Armed Services Committee on Capitol Hill in Washington. Petraeus, the retired four-star general who led the U.S. military campaigns in Iraq and Afghanistan, resigned Friday, Nov. 9, 2012 as director of the CIA after admitting he had an extramarital affair. (AP Photo/Pablo Martinez Monsivais, File)