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U.S. officials announce airport security enhancements
NBC's Tom Costello and Ayman Mohyeldin and MSNBC Military and National Security Analyst Kevin Baron join Thomas Roberts to discuss breaking news regarding the crash of a Russian plane in the Sinai Peninsula.
National Security on msnbc
Hogg siblings on how activism helps with healing07:50
Fmr. CIA Dir.: Trump child separation a 'national security' issue07:24
NYT: Trump's Pentagon quietly ramps up fight against cyberattacks04:14
Looking back to Watergate and what it tells us about now07:26
'People are kept in cages': Inside Border Patrol center09:43
Wehner: It will get worse when Mueller report comes out10:19