Palestinian policemen stand guard at the checkpoint on the main road into Hebron during a visit to the flashpoint West Bank city by Palestinian leader Mahmud Abbas (portrait on police vehicle) on November 8, 2009. Abbas, who was elected at the head of the Palestinian Authority in 2005,  announced earlier this week he would not stand for re-election in polls he has called for January. Getty Images logo Getty Images 27 months ago

Palestinian policemen stand guard at the checkpoint on the main road into Hebron during a visit to the flashpoint West Bank city by Palestinian leader Mahmud Abbas (portrait on police vehicle) on November 8, 2009. Abbas, who was elected at the head of the Palestinian Authority in 2005, announced earlier this week he would not stand for re-election in polls he has called for January.