A woman walks past a giant portrait of late Palestinian leader Yasser Arafat at the Palestinian Authority's Muqataa headquarters in the West Bank city of Ramallah on November 8, 2009, three days before the fifth anniversary of Arafat's mysterious death in a Paris hospital on November 11, 2004. Five years have passed, yet the mystery surrounding Arafat's dramatic demise seems just as impenetrable, with many senior officials still holding strong to the belief their leader was poisoned.