And then, seconds after I made the last post I read this:
An assault weapon the marines were using had been armed with warheads containing "about 35% thermobaric novel explosive (NE) and 65% standard high explosive". They deployed it "to cause the roof to collapse and crush the insurgents fortified inside interior rooms". It was used repeatedly: "The expenditure of explosives clearing houses was enormous."
The marines can scarcely deny that they know what these weapons do. An article published in the Gazette in 2000 details the effects of their use by the Russians in Grozny. Thermobaric, or "fuel-air" weapons, it says, form a cloud of volatile gases or finely powdered explosives. "This cloud is then ignited and the subsequent fireball sears the surrounding area while consuming the oxygen in this area. The lack of oxygen creates an enormous overpressure ... Personnel under the cloud are literally crushed to death. Outside the cloud area, the blast wave travels at some 3,000 metres per second ... As a result, a fuel-air explosive can have the effect of a tactical nuclear weapon without residual radiation ... Those personnel caught directly under the aerosol cloud will die from the flame or overpressure. For those on the periphery of the strike, the injuries can be severe. Burns, broken bones, contusions from flying debris and blindness may result. Further, the crushing injuries from the overpressure can create air embolism within blood vessels, concussions, multiple internal haemorrhages in the liver and spleen, collapsed lungs, rupture of the eardrums and displacement of the eyes from their sockets." It is hard to see how you could use these weapons in Falluja without killing civilians.
This looks to me like a convincing explanation of the damage done to Falluja, a city in which between 30,000 and 50,000 civilians might have been taking refuge. It could also explain the civilian casualties shown in the film. So the question has now widened: is there any crime the coalition forces have not committed in Iraq?
It's hard to see any benefits for anyone from doing more of this.