Israel Vows Harsh Response to Attack Wed May 8, 9:43 AM ET By KARIN LAUB, Associated Press Writer JERUSALEM (AP) - Israel prepared a tough response to a Palestinian suicide bombing in a suburban pool hall, weighing options including a large-scale military operation and expelling Yasser Arafat (news - web sites). The Palestinian leader, meanwhile, said he was ready to wage "war against terrorism." In a new attack Wednesday, coming just 12 hours after the pool hall bombing killed 15 Israelis, a bomber detonated explosives at a bus stop in northern Israel. The assailant was critically wounded, but caused no...