This undated photograph obtained by The Seattle Times shows FBI Special Agent Frederick W. Humphries posing with target dummies following a SWAT practice in an unknown location. The Times says Humphries sent the photograph to friend and Florida socialite Jill Kelley and others, including one of the paper's own reporters, in an email Sept. 9, 2010. (AP Photo/Special to The Seattle Times)
David Petraeus apologized on March 26 to an audience of veterans for the conduct that led to his resignation in 2012 as head of the CIA following the disclosure of an extramarital affair with his biographer, Paula Broadwell.