Andrew Bacevich: Trump's Handling of N. Korea, His First National Security Crisis, is Very Troubling

On Tuesday, President Trump shocked the world by hinting the U.S. could carry out a nuclear strike on North Korea. Hours after he spoke, North Korea threatened to strike the U.S. territory of Guam in the western Pacific. China has warned that a "war of words" between the U.S. and North Korea could spiral out of hand. We speak with Andrew Bacevich, professor emeritus of international relations and history at Boston University. He is a retired colonel and Vietnam War veteran.