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Morell: U.K. "overstating" likelihood of bomb on Russian jet

| As investigators look into the possibility of a bomb having brought down a Russian plane in the Sinai Peninsula, some are cautioning against the theory. All 224 people on board the jet were killed in the disaster. CBS News senior security contributor and former deputy CIA director Michael Morell joins "CBS This Morning" to discuss the specific evidence the investigation needs to prove the theory.