College campuses on high alert after string of threats and hoaxes

The campus of the University of Colorado Boulder was evacuated due to a bomb threat. The school later determined it was a hoax. The U.S. Naval Academy was locked down after an online threat. A source tells NBC News, a midshipman thought a responding member of law enforcement was a threat, leading to an altercation where the officer shot the midshipman. NBC News’ Ryan Nobles reports.