welcome back to our continuing coverage of events inside russia. we're getting new information into cnn and what the intelligence community is saying about the armed rebellion. chief national correspondent jim sciutto joins me now. what are you hearing? >> well, first of all, i've been speaking to western intelligence sources just to get their read as to what happened here. was this all for real? because in the span of less than 24 hours, you had something come up nothing, it appeared, and then all of a sudden, you have a major city in the south taken over in the march toward moscow and then it's over. but my understanding from their perspective is that this was a real challenge to russian military leadership by