jsoc is an organization that was put together to do the nation's most sensitive missions. >> i was the senior intelligence officer working for stan mcchrystal while he was the commander of joint special operations command. >> i was transitioning into the role of deputy director at the national security agency. and was very engaged in the hunt for zarqawi. >> i immediately went on a tour of forces that were deployed and it became clear that our effort in iraq was going to have to increase significantly. as soon as i entered the country, it was evident the insurgency growing, which turned out to be abu musab al zarqawi, was much stronger than people appreciated, and we were likely in for a long fight. so my mission was to be focused against that enemy. >> where was this transition from saddam to zarqawi? the most visible sign of that transition was in march of 2004, which is what's called first fallujah. the battle of first fallujah.