    ‘Sentence: Last year, Arafat cracked.down-on  Hamas after.a string of bombings in Tel-Aviv  and Jerusalem,, arresting rioré than ‘1,200  suspected terrorists, destroying Hamas, safe  houses, and confiscating its Weapons caches.    Senterice:2: Arafat stood’ back’and ‘watched  Harhas.attack Tel Aviv andJerusalem.