Whoever is in charge of email security. All email messages would be scanned. Anyone in a position that Petraeus had at the CIA would have to be a total idiot to use his CIA email account to send messages to and receive messages from his girlfriend. IMHO they have been sitting on this since before he took the position of Director. I think he just got tired of being blackmailed. I just hope he has enough integrity left to do the right thing now.
GOOD RIDDANCE you RUINER of the military by wanting OENLY GAY SOLDIERS!!!