Washington's UN ambassador on Friday said Syria was partially responsible for the latest wave of Israeli-Palestinian violence, saying it harbored militants from Hamas. "We would not be where we are right now if it were not for Syria's support and harboring of terrorists," John Bolton said. Bolton pressed Syrian President Bashar al-Assad to join international efforts to resolve a wave of tension that has seen Israel stage incursions into the Gaza Strip in search of an Israeli soldier captured by Hamas.He particularly urged Syria to turn over for prosecution Khaled Meshaal, Hamas's exiled political leader, who lives in Damascus.