Israel, which is widely believed to have assasssinated Shakaki, expelled several thousand Palestinian workers to the West Bank and the Gaza Strip Monday and tightened travel restrictions on Palestinians in an attempt to prevent revenge terrorist attacks. "The fact that the Israelis are adopting such tough measures indicates that there is extremely serious concern of a terrorist response on Israel," reports TIME's Jamil Hamad from the West Bank. "I fear, however, that the Israelis are underestimating the effect of the restrictions themselves on Palestinians. These measures may do more harm than good: they are building anger and frustration among the Palestinians, which could lead to violence and doom the peace process. Palestinians are asking themselves, 'What good is a peace if I cannot earn a living?'"