>> ifill: do he and his supporters have concern about americans moving interest in his cause? >> yeah, he was quite concerned that at some point the information that was coming out will pretty much be put on the back pages, people won't pay attention to it anymore, sort of compare it to a war in the sense that five people being killed is a headline, 1,000 people being killed a month later is a back page. so it's a problem of becoming sort of numbed, or this whole problem of boiling frogs where a frog is in the water and the heat gets turned up slowly so that th the frog doesn't know is being boiled. so it's a problem he's concerned about that the public will stop paying attention to the leaks and revelations at some point. >> for that reason he poses with an american flag on the woofer

>> ifill: and which reports come from his documents and which ones come from possibly someone snells. someone -- someone else? >> well, that's the indication. edward snowden indicated to me, the n.s.a. certainly has a problem, that things are still walking. he said that's a major problem to the u.s. since the n.s.a. has so much of american communications -- telephone calls, e-mails and so forth -- and if there is a second leaker, which apparently there is, and certainly the evidence indicates that, and maybe having been inspired by edward snowden, it's certainly a major problem for n.s.a., if they thought they had a problem with snowden, now they have a problem with someone else

documents, but his comments were really extraordinary, to me. he said he actually left basically bread crumbs. he left some clues to indicate which documents he actually saw and which documents he actually copied so that the n.s.a., when they went back and did an audit, would be able to determine that he was a whistleblower -- in other words, taking documents that indicated they were involved in domestic eavesdropping, for example, as opposed to documents dealing with north korea or russia or china or whatever. so he didn't say how many documents, but he said there were considerably fewer than the 1.7 million that the n.s.a. has alleged, and that 1.7 million is basically based on the documents he may have at one point seen, but certainly not the documents that he copied and by them missing the clues he left, we