Deeply conservative and anti-American, Fallujah has a population of some 200,000, all of whom are members of Islam's mainstream Sunni Muslim sect. Some subscribe to radical interpretations of Islam, finding behavior by American troops like raiding homes and detaining men in front of wives and children as deeply offensive.
Ho! What wacky and radical beliefs! Good thing people in the US don't find those sorts of things offensive, or the Patriot Act might never have been passed.
Ryan