Missile-tracking command gets new boss as Trump-Kim summit falls apart

COLORADO SPRINGS, Colo. — A new U.S. general was put in charge Thursday of the military command responsible for monitoring missile launches from North Korea and other countries the same day President Trump canceled a planned nuclear weapons summit with North Korean leader Kim Jong Un and threatened military action.

Defense Secretary Jim Mattis, who attended a ceremony welcoming Gen. Terrence O’Shaughnessy in Colorado, said the safety of both the U.S. and Canada depend on the 24/7 monitoring by the North American Aerospace Defense Command, or NORAD, which tracked the North’s flurry of testing intercontinental ballistic missiles last year as Trump and Kim traded threats.