According to CNN:

" Four civilian U.S. contractors were killed in a grenade attack today in central Iraq, U.S. officials said. A cheering crowd in Fallujah pulled the charred bodies from burning vehicles and hung them from a Euphrates River bridge. At least one of the bodies was dragged through the streets, witnesses said. "

The reality, censored by CNN's "politically correct" policy: after the grenade attack, the commando left, and the crowd started mutilating the corpses with knives. At least one body was covered with gas and burned by the crowd. Bodies and parts of bodies were attached to cars and dragged through the streets. After that, the crowd hung the remains by the feet, and hung one hand and apparently one head where the attack took place.