FBI probes mysterious disappearances, deaths of US scientists

FBI investigates mysterious deaths and disappearances of scientists working on nuclear and space research. Chris Swecker, a former assistant director for the FBI, discusses what he considers the 'common denominator' in the cases and more.

House Oversight Committee demands answers as the FBI spearheads an investigation into the mysterious deaths and disappearances of US scientists involved in sensitive nuclear and space research. Former FBI Director Chris Swecker warns of potential espionage. Separately, an Iranian national was arrested at LAX for arms trafficking, alongside coverage of a Shreveport gunman killing 8 children and a fiery NYC street takeover.