Leaders of Palestinian terror groups are holding talks in Cairo aimed at formalizing the unofficial truce with Israel. A formal cease-fire would give a boost to Abbas, who has promised to end violence and return to peace talks with Israel. But Israel says a cease-fire is a copout. It has warned Abbas that if he fails to dismantle terrorist groups, they'll be able to blow up the peace process when they see fit. "Just an understanding is not enough because it will allow the terrorist organizations to rebuild," Foreign Minister Shalom told reporters. "An easing off is not a cease-fire and it can bring the destruction of the peace process."