Palestinian leader Yasser Arafat, left, grabs the hand of Hamas founder Ahmed Yassin after arriving in Gaza City Tuesday October 7, 1997 on the first day after his arrival home. Yassin, the founder and leader of the Hamas militant group that targeted Israelis in suicide bombings, was killed by missiles fired from Israeli helicopters as he left a mosque at daybreak Monday, March 22, 2004, witnesses said. (AP Photo/Adel Hana)