counterterrorism center. and gave out aunch of, say, spellings of his name and two possible dates of birth, anderson. >> gloria, what was the quality of that information coming from the russians? >> well, my intelligence sources say the quality of information was actually quite thin. they say generally the russians are very formal, and more irregular with the information they share. they're not -- they don't expect them to share their sources with them. and then when the officials -- the investigators here went back to the russians, i was told, quote, they did not get a case report back to us. >> so, joe, do we know at this point what piqued the russians' interest in the first place? if tamerlan was over here, how did the russians know he was interested in radical islam or jihadism? >> we have a little bit on that, anderson, and it's pretty much based on the fbi's narrative.