[Cliff Beer]

Everyone in Iraq (yes, everyone, civilian or military) knows by now that there is a process for approaching and passing through a check point (ask any Israeli or Palestinian for an example from a different country, it's second nature for them). They know that this means promptly stopping (and anything else you're told to do) when instructed to do so and, most importantly, that if you don't do what you're told (such as stop) you will be exposing yourself to great bodily harm. Why is this the case? Because the first identifying characteristic of a crazy intending to kill and terrorize authorities at a check point is to not stop in order to get close enough to cause maximum carnage. It's real simple, and everyone, including this family, knew the drill and the likely end result of not following the drill.