When I go to buy something, and they hand me a form to sign, I always read it. I usually get a response from the clerk "Just sign it. Everybody else does." So, because everybody else is a fool, I have to be one too.
Excuse me, but there is a huge difference between illegal and wrong. If you are charged with oversight, then nothing should be off limits. If the CIA is actively trying to thwart your investigation, then it's your job to go behind their backs.
"And now we have a contractor employee, not a government employee, who has access to information which is, when revealed, most damaging to the standing prestige of the United States and our relations with some of our best friends." There, he said it. The real reason everybody is pissed off at Snowden is because he embarrassed the US government.