Trump threatens 'major military punishment' after Houthi attacks on tankers in Red Sea

International oil prices topped $100 a barrel after Houthi rebels in Yemen claimed they attacked two oil tankers in the Red Sea, raising new fears of disruptions to global energy supplies. In response, President Trump warned that if the Houthis attack another ship, the U.S. would inflict "major military punishment." He also warned of escalation inside Iran. Nick Schifrin reports.