A top aide to U.S. President Donald Trump expressed concern Thursday that North Korea's nuclear weapons development program and a possible future nuclear threat from Iran may spark the proliferation of weapons of mass destruction around the world."If eventually other countries...become nuclear powers, there'll be a real impetus for a lot of countries to develop or buy nuclear weapons," Trump's chief of staff John Kelly told reporters at the White House.On North Korea, Kelly said Americans "should be concerned about a state that has developed a pretty good ICBM capability and is developing a…READ FULL ARTICLE
