handful of iranian targets like radar and missile batteries. there were ships in position, planes in the air when the president walked the whole thing back. not clear whether he simply changed his mind or whether strategy, logistics, weather caused the attack. what is clear is the president s public response seesawed. he gave iran the benefit of the doubt leaving open the possibility of war. i find it hard to believe it was intentional if you want to know the truth. i think it could be somebody who was loose and stupid that did it. we ll be able to report back and we ll understand exactly what happened, but it was a very foolish move, that i can tell you. mr. president, how will you respond? you ll find out. are you willing to go to war? you ll find out. the very latest, let s go to tehran and senior correspondent, frederick pleitgen.