Palestinians pass by a mural depicting late Palestinian President Yasser Arafat, in Gaza City, Wednesday, July 4, 2012. Arafat's body may be exhumed to allow for more testing of the causes of his death, the Palestinian president said Wednesday, after a Swiss lab said it found elevated levels of a radioactive isotope in belongings the Palestinian leader is said to have used in his final days. (AP Photo/Adel Hana)