I read the whole thing, the title put me off but I stood firm.
Page 3 is where the stuff about leakers is; in the context of http://www.nytimes.com/2009/01/11/washington/11iran.html?_r=...
To me it seems 4 years ago while working for the CIA, he was an idealist. He saw it from the protecting national security angle.
To me, not entirely surprising?