'A Chilling Warning': Nicolle on the threat of terrorism in the wake of Hamas Oct. 7 attack - Deadline - MSNBC

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John Brennan, Former CIA Director and Mary McCord, former top official in the Justice Department's National Security Division join Nicolle Wallace on Deadline: White House to discuss the increased threat environment here in the U.S. following a terror attack that killed the most Jews since the Holocaust. - Aired on 10/31/2023.