Richard Arnold: US Correspondent talks potential escalation from US in the Middle East

The United States is warning that hostilities between Saudi Arabia and Iran-backed Houthis could “escalate rapidly” after a dramatic missile strike.  US President Donald Trump cut short a weekend at Camp David to return y to the White House over the weekend.  The White House gave no explanation for the early return, but US Correspondent Richard Arnold told Mike Hosking there's fears the US might get involved in the conflict.  LISTEN ABOVESee omnystudio.com/listener for privacy information.