information back to bin laden, they would just reverse the process. so he was able to -- it was a meticulous time, painstaking process to go through, but it allowed him to get information in and out without ever getting online, carol. >> another mystery solved. chris lawrence, many thanks. and actually, chris isn't going anywhere because he'll return at the bottom of the hour to discuss one of the more intriguing questions, did the navy s.e.a.l.s record the entire raid on helmet cams? chris will be back to discuss that. defense secretary robert gates also says security is a big reason why the president will not release the bin laden death photos. gates referenced the photo-shop age we live in and said someone could alter those pictures and use them to stir up anger and provoke on american troops in iraq and afghanistan as well as on american civilians who live overseas. senator john mccain says the way america treats its prisoners of war is key to keeping our men and women in uniform safe. he writes in "the washington