Reply #63: To answer your questions,

[beam me up scottie]

no, not in some cities, yes in some areas all cars are seen as possible threats and yes, they shoot first when a car keeps coming at them after being asked to stop.
Unfortunately those are the assumptions and the reality.
The city of Fallujah was a free fire zone once the military moved in to quash insurgents. It was morally indefensible, most likely illegal, and sadly, also a complete failure.
That said, soldiers cannot change policy. If they had a choice, I tend to agree with JohnOneillsMemory, most would want to come home to their families.