the "washington post" outlook section has the piece by ted copple. let's stop playing into bin laden's hands. he writes. one of our viewers on our twitter page. colorado, good morning. on our line for independents. caller: hi. my question mainly is i always hear about bin laden but i've -- i can't find any information on how we are so certain that it is bin laden. did he take credit? and if so, when? is there a video there or did we just find some information that directly pointed to him? host: well, he did take credit. there was that famous video that was released a couple months in which he was in an undisclosed location talking about the collapse of the twin towers. that's still available on you tube. caller: he said i was responsible? host: by all accounts al qaeda claimed responsibility. you're theying they're not? caller: i just don't feel that they are. and the reason is because it just seems like if they had been responsible there would have been a much more organized network behind it. it just seemed like it was this small group in afghanist