Ah. How much experience do you have looking through EO/IR cameras, trying to discern everyday objects from weapons? In time-critical situations when troops have been in contact and an error in judgment will result in lives lost? Because I have plenty, myself, so I didn't want to embarrass myself if you had over 800 hours of combat flight time or something.
Anyway, the Apache video demonstrates - assuming the context is correct and WikiLeaks isn't lying with their commentary - is an unfortunate but completely understandable mistake given the situation.
As someone who has worked with those types of aircraft and ground forces extensively in various operations, I can attest to their professionalism and the seriousness with whic they assume their duties. AVOIDING civilian casualties in Afghanistan was our highest concern; to the point where we regularly risked the lives of our own before risking shooting or bombing the wrong person.
And do I view the GWOT as us vs. them? Yes, yes I do. That's what war is, and especially in this case, considering the tactics and goals of terrorists and Islamist governments, and their facilitators and sympathizers.