INTERVIEW: Campbell University's Associate Professor Sal Mercogliano, on Red Sea shipping security

US Defense Secretary Lloyd Austin is in the Middle East as tensions grow over shipping security in the Red Sea. He's calling for an expanded maritime protection force to address the growing number of attacks on commercial ships by Iran-backed Houthi rebels. The escalation in such incidents has prompted major companies to suspend use of the route for their vessels. Janice Petersen is speaking to Associate Professor Sal Mercogliano, from Campbell University in North Carolina.