The US has sent a guided missile submarine to the Middle East as tensions grow in the region. The move comes in response to fears of a wider regional conflict after the recent assassination of senior Hezbollah and Hamas leaders. It signals the US's determination to help defend Israel from any attack by Iran. Jeremy Pressman, Ph.D., Professor of Political Science at the University of Connecticut and author of "The Sword is Not Enough: Arabs, Israelis, and the Limits of Military Force," joins Newell to continue the discussion on the conflict in the Middle East.