Is The Israeli-Palestinian Conflict A National Security Threat To The U.S.?

Is The Israeli-Palestinian Conflict A National Security Threat To The U.S.?
A Palestinian walks on the rubble of the house of the top Hamas leader in Gaza, Ismail Haniyeh, hit by a pre-dawn Israeli strike, in Gaza City, northern Gaza Strip, Tuesday, July 29, 2014.

Prime Minister Benjamin Netanyahu says Israel will destroy the Hamas tunnel network in the Gaza Strip "with or without a cease-fire." We asked ABC News Crime and Terrorism Analyst Brad Garrett is the Israeli-Palestinian conflict a national security threat to the U.S.?