There is a video going around (I’ll not link to it) apparently made by British mercenaries in Iraq. It’s shot out of the back of a moving truck/SUV which is driving down the fast lane of a dust-coloured concrete dual carriageway. There is quite a lot of civlian traffic in the inside lanes. Sometimes other cars are visible in the fast lane behind; whenever this happens a gun fires from the right of the camera position. You see the muzzle sometimes, and sometimes ejected cartridges jerk across the screen.
There’s one sequence where a white Mercedes comes fast round a bend, so he couldn’t possible have seen the mercenaries riding ahead, and the firing goes on until the Mercedes lurches abruptly to the right and crashes into the rear quarter of a car in the slower lane. Both vehicles stop. The doors of the car that was crashed into open. Two men get out and run across the remaining traffic for the verge. For some reason. I had expected to see them rush back to help the wounded or dead people in the car that had hit them after being machinegunned by the British mercenaries. I don’t know why this struck me as more terrible than the murders themselves but it did.
Even worse was something you couldn’t see at all: the whole video sequences — and there were three or four scenes, obviously carefully edited — had been given a soundtrack, of Elvis singing “Mystery Train.” And I suppose there is more chance that the perpetrators will be done for copyright infringement than for war crimes.