Why was the FBI monitoring Petraeus' email? Well, it may not have been
The threats, the FBI soon deduced, were from Petraeus biographer Broadwell
The FBI apparently believed someone had hacked Petraeus’ personal account or was posing as him
"Speaking as a friend, colleague and fellow general officer, Gen. Clapper urged Gen. Petraeus to step down."
A long-standing departmental rivalry? Technological incompetence? A conspiracy?
A compromised email account bringing down the CIA director would be poetic, but it's not what happened