When a documentary becomes the center of international controversy, its makers must have done something right: They have highlighted a topic they care about, brought it to the attention of as many people as possible — preferably those with influence in society — and made it the subject of conversation in as many quarters as possible. Even before discussing the merits of the new Israeli documentary “NAZA” — a Hebrew military acronym for nezek agavi, meaning “collateral damage” — which investigate
