National security adviser H.R. McMaster, right, and U.S. Ambassador to the UN Nikki Haley, participate in a news briefing at the White House, in Washington, Sept. 15, 2017. (AP/Carolyn Kaster)
North Korea

McMaster: US Has Four Or Five North Korea Scenarios, “Some Uglier Than Others”

McMaster said the threat from Pyongyang is “much further advanced” than anticipated and the Pentagon said the president has a “deep arsenal” to draw upon.