well, we sat down with the man behind the leak, julian sanoge is his name. to try to find out why he did it. jim sciutto has the story. >> reporter: its mission is taking on the powerful and seemingly untouchable and exposing their biggest secrets. so when we sat down in london today with wikileaks founder and asked him what drives him, his answer was, well, direct. >> i'm a combative person. it's how i like crushing the bastards. >> reporter: but is crushing bastards in its own right a just cause? >> depends on the bastard. real bastards are people who have power and abuse their power to afflict people who are weaker than they are. >> reporter: today, the quote bastards are the architects of the war in afghanistan. wikileaks released 92,000 classified military reports spanning six years, exposing afghan government corruption, pakistani support for the taliban, and most alarmingly, what he says is possible u.s. war crimes by u.s. soldiers. that is a very strong charge to make. >> that's true, but when you're seeing such extraordinary numbers of casualties an