The fact that children had to be involved in the incident was unfortunate, but the apache crew had no way of knowing that there were children in the van before they opened fire. The idiotic driver of the vehicle in question should never have charged into such an obvious kill zone with children on board in the first place.
I frankly agree with Ray here. The general behavior exhibited by the people in that video makes it very hard to believe that the reporters the US Military killed were completely innocent in their intentions. Rational non-hostile human beings simply do not have a minivan on stand-by waiting to charge into a hail of bullets at breakneck speed to evacuate casualties.