Mattis: North Korea threat would bring massive military response

WASHINGTON — Defense Secretary Jim Mattis on Sunday shot back at North Korea's claimed test of a hydrogen bomb with a blunt threat, saying the U.S. will answer any threat from the North with a "massive military response — a response both effective and overwhelming." Earlier, President Donald Trump threatened to halt all trade with countries doing business with the North, a veiled warning to China, and faulted South Korea for its "talk of appeasement."The tough talk from America's com