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    David H. Petraeus, former army general and head of the Central Intelligence Agency, speaks at the annual dinner for veterans and ROTC students at the University of Southern California, in downtown Los Angeles Tuesday, March 26, 2013. It marked Petraeus' first public remarks since he retired as head of the CIA after an extramarital affair scandal (AP Photo/Reed Saxon)

    David H. Petraeus, former army general and head of the Central Intelligence Agency, speaks at the annual dinner for veterans and ROTC students at the University of Southern California, in downtown Los Angeles Tuesday, March 26, 2013. It marked Petraeus' first public remarks since he retired as head of the CIA after an extramarital affair scandal (AP Photo/Reed Saxon)

    David Petraeus

    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.