As the conversation shifted to foreign policy, Bernie Sanders dug into Hillary Clinton for her consultations with former Secretary of State Henry Kissinger, citing his actions during the Vietnam War.Noting Clinton's mention of the former diplomat and national security adviser in a previous debate and in a book review, Sanders called the kind words "rather amazing."“Because I happen to believe that Henry Kissinger was one of the most destructive secretaries of state in the modern history of this country," the senator said.