others should think deeply about and i won t elaborate on how we intercepted, control and discovered this plane. while the u.s. inteigence community is considering a handful of explanations, fox news has learned details of a leading scenario. the rq-170 could not re-establish contact with base. it should have gone home or hit destruction mode. but the theory is the throne got stuck in a default setting for automatic landing. this would be in line with the internal or system failure. because the drone is designed with the multiple redundancies, some analysts say there has to be more to it. it s a term that relates to the adversary, masquerading as your signal. there is ways of manipulating it, overpowering, the friendly signal. if they are on remote control. u.s. officials tell fox there is no evidence to support iranian claims that they jam the drones data stream to bring it down. though a former u.n. ambassador speculated tehran may be getting help from moscow. if the russia
major topic at this hearing and catherine he herridge has been n the hearing. what can you tell us. reporter: it s really one of the most significant hearings for the u.s. national intelligence communities in terms of setting its priorities and look at budget issues. right out of the gate the discussion was on egypt and also tunisia. the nation s top intelligence official jim clapper the dni was asked whether the intelligence community had effectively dropped the ball or fumbled the ball when it had come to predicting some of the outcomes in tunis and egypt. in this particular case he said that the u.s. inteigence community had warned consistently that if the up rising in tunis spread to egypt that it had the potential in egypt of gaining momentum and perhaps toppling the government there. in the last few minutes the cia director has said that there was a strong likelihood that moubarak would step down tonight. i would preface that by saying