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Fmr. CIA Dir. Brennan: 'Critically important' that Biden is now receiving the President's Daily Brief

06:09

John Brennan, former CIA Director, joins Andrea Mitchell to discuss the "critical" importance of Joe Biden receiving his first President's Daily Brief today and his concerns on the assassination of an Iran nuclear scientist. Brennan says one concern of his is "if a country had authorized or conducted the attack I think it's beyond the norm in terms of practices that states should engage in, in terms of assassinating senior officials of public government. Israel & Iran are not in state of war. Just the way we would condemn any assassination carried out by Russia, China, we should do it when there's a senior official of a sovereign state who is assassinated."