First, this is irrelevant here. The is about geekdom, remember? And since Holocaust Remembrance Day in the media is yesterday, today and tomorrow, we don't need any more reminding.
Second, the reason they didn't bomb the camps is that they knew full well that right in the middle of a life-and-death struggle, the Nazis were actually diverting who-know-how-many SS soldiers and their immense support systems to running these camps.
The war, which tettered on a tipping point several times. might have been way different if those soldiers has been allowed to actually soldier. The camps held them down as effectively as several armored divisions.