MIDDLE EAST . . . HAMAS VOWS TO SPOIL CLINTON TRIP

Vowing retaliation for Israeli government orders to shoot their leaders on sight, Hamas, the militant Islamic group that blew up a Tel Aviv bus last week, threatened to mar President Clinton's five-country Middle East tour with more violence. Since the bombing, Israeli authorities have rounded up dozens of second- and third-tier Hamas operatives from the West Bank and Gaza Strip, including, Rabin disclosed today, two alleged accomplices of the suicide bomber, Salah Abdel Rahim Hassan Assawi. Rabin also pledged to amass a 10,000-member security force for Clinton's arrival in Jerusalem Thursday. In Washington, Secretary of State Warren Christopher said the Administration is likely to propose legislation to quash U.S. fund raising by Hamas and other terrorist groups.