H.R. McMaster after North Korea failed missile test: Trump 'will take action' to protect US

National security adviser H.R. McMaster said Sunday that President Trump is ready to take action against any threats North Korea might pose to the U.S. after the country attempted a missile launch that failed. In a clip released early from his interview on ABC's "This Week," McMaster, an Army officer, echoed his boss on U.S. military strategy, saying "we do not want to telegraph in any way how we'll respond." -- More...