Once again, the Afghan government and locals say a bomb killed mostly civilians, while NATO says it killed only enemy fighters.

Civilian casualties are inevitable in a war. You can try to avoid them but it is impossible to succeed completely. Deciding to fight a war implies accepting these casualties. Sometimes that is justified, but the reason needs to be very strong.

The Taliban kill a lot more civilians than NATO does, but the Afghan people don't resent it as much. Either they support the Taliban at some level, or they are not strongly motivated to fight them. As long as that is the case, defeating the Taliban militarily is almost impossible.