Even by the standards of the friday afternoon news dump tradition, yesterday's news that Gen. David Petraeus had resigned from the CIA was a stunner. The most heralded military officer of his generation fell from grace after it was revealed he'd had an affair with his biographer. The affair was discovered earlier this year soon after the FBI began monitoring his email. This raises a very serious question. Who authorized the FBI to monitor the e-mail of the Director of the CIA?