because they have seen a success of the top leadership attack successfully taken off the battlefield for good. while the white house confirms that the president knew in early april the homeland secretary insists it was not marking one year since the seal raid. the statement there is no specific credible plot tied to the anniversary of bin laden s death. that is an accurate statement. reporter: on the eve of the anniversary theyished they d statement saying there was no credible plot. it does not make sense to me that the bulletin was put out if the president has been aware of this plot since last month. so there does appear to be an inconsistency there. but perhaps there is a good reason for it. late today, the chair and ranking member of the senate intelligence committee said the leak about the c.i.a. operation is regarded as very
igor sutyagin. what, matthew, do you know, is he accused of? reporter: yeah, well, he s a nuclear analyst, nuclear weapons expert, in fact. he worked at a think tank associate with the moscow academy of sciences, which is an academic institution. particularly associated withel u.s. and canada institute there. accused of essentially selling nuclear secrets from russia to employees of a british security firm, which is i believe to have been the front for a cia operation. he was convicted in 2004, sentenced to 15 years, in prison. he s all the time, though, denied his innocence. although today his mother says that he has been forced, in her words, to sign a confession that he is guilty of this spying, as one of the terms of this alleged prisoner swap deal. and one final question, matthew. do you know of any other time that the u.s. may have tried to intercede on this scientist s