sure you keep the american people safe from those bad guys. >> the most important bad guy on president obama's list was osama bin laden. the cia believed it had him in its sights at a compound in abbottabad, pakistan. >> he has a very distinctive look. he's tall, lanky. and his gait is very deliberate. so it was something that had struck me that, 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