. >> atta, mohammed atta, leader of the 9/11 hijackings. from prague comes an intelligence report of a photograph allegedly showing mohammed atta meeting with a high-ranking iraqi intelligence officer. the photograph of the supposed meeting is never made publicly available. >> mohammed atta was a slight guy, barely what, 5'5", 5'6", and skinny. the guy in the photograph was muscular, thick and had a neck the size of two of my necks. that's not mohammed atta in the photograph. but send it to the lab anyway. in my mind, the matter is put to bed. >> in the final analysis -- >> even without definitive evidence, the vice president goes public with it. >> it's been pretty well confirmed that he did go to prague and he did meet with senior official of the iraqi intelligence service in czechoslovakia last april. >> i was sitting in my den in my home, washington, d.c., and i remember looking at the tv screen saying, what did i just hear? and i -- first time in my life, i actually threw something at the television. because i couldn't believe what i h

the 9/11 attack was conceived of by mohammed atta and planning with his uncle and they were, you know, they were individuals that came up with we think question do this. that's al qaeda's method. it's guerrilla warfare. it doesn't have to involve the entire organization from the top down. any individual anywhere can be inspired by al qaeda, the movement of inspire magazine from alaki and followers. and that inspiration is just to fight the west. it's to fight our beliefs and our way of life. if you look at the magazine, other articles, they talk about the cost economically to our way of life by doing these attacks, the increased security, the increased security in the london marathon weeks later because of the boston attacks. and that's what they're really proud of. they're hurting us economically as well as making our people bleed and killing innocent civilians on the streets of boston. >> the explosive devices used in the boston bombings had striking similarities to a bomb recipe in the first issue of "inspire" june 2010. the article "make a bomb in the kitchen of your mom." now the