bin laden. the cia believed it had him in its sights at a come pound in abbottabad, pakistan. >> he has a very distinctive look, he's tall, lanky, and his gait. it was something that struck me when i saw it, call it instinct or whatever, i said, yeah, i think that's him. . . >> but identifying him was by no means a slam dunk. >> the odds that it was bin laden were probably 50/50. >> failure of the mission could easily have cost the president his job in 2012. but in the end, he decided to move forward. >> and it was emblematic of presidential decision-making. you're always working with probabilities, and you make a