CBS News has confirmed North Korea gave the Trump administration a $2 million bill for the hospital care of American hostage Otto Warmbier, who later died in the U.S. The University of Virginia student was sentenced to 15 years hard labor in prison, accused of taking a propaganda poster during a visit to Pyongyang. Warmbier was sent home in a coma in 2017. The U.S. says it never intended to pay the bill, but it was signed for. Weijia Jiang reports.