information from four or five different platforms, whether it's interrogations, human intelligence, all of that. because it was a big issue to cross that border. what i was told and repeatedly by people is that it, it was a contributing factor in their decision to do this and to proceed in the capture of bin laden. >> let me tell what you the senate report says about this. as you know there was a courier who was instrumental and the thinking was, if you find this courier who is a constant companion to osama bin laden, you'll find osama bin laden. there was a detainee who knew about this courier, who provided that information. let me read to you what the report says. the c.i.a. detainee who provided the most accurate tier 1 information linking the courier to ubl, known as osama bin laden, hassan, that's the detainee ghul, provided the information prior to being subjected to the c.i.a.'s enhanced interrogation techniques. hassan ghul opened up right away