Guncam footage - why aren't those gunners doing anything?

[TinyTim]

One reason - basic probability theory.

It's much more unlikely to see a guncam from a fighter, parked at close range on a dead 6 of an american heavy bomber with all defensive guns blazing at him simply because the probability of the fighter surviving such an encounter and bringing back the footage is much lower.

Besides, yeah, its sad watching these planes getting shot to pieces - what a horrible moments for the crew, which was, correct me if I'm wrong, only trying to drop humanitarian aid to the civilians below. Sorry, but I find it very hard to find any compassion for any soldier in WW2 which was involved in killing civilians, regardless of the side they fought on and of the side of targetted civilians.