The US-backed Palestinian Authority security forces belonging to Mahmoud Abbas and Salam Fayyad have been monitoring the activities of Palestinians on Facebook to make sure that no one criticizes them. The Palestinian Authority wants Palestinians to write only nice things about their leaders. Criticism should be directed only against Israel. Those who fail to toe the line will find themselves either behind bars or without work. The Palestinian leadership's clampdown on Facebook users is seen as a pre-emptive measure to prevent the "Arab Spring" from infiltrating into the West Bank.