The United States is preparing for all options to counter the growing threat from North Korea, including launching a “preventive war,” national security adviser H.R. McMaster said in an interview with MSNBC that aired Saturday. The comments come following North Korea carrying out two tests of intercontinental ballistic missiles (ICBMs) last month. “What you’re asking is are we preparing plans for a preventive war, right?” he said in response to a question from MSNBC’s Hugh Hewitt. “A war that would prevent North Korea from threatening the United States with a nuclear weapon. And the president’s been very clear about it....