helicopters should never be flown in poor visibility (night) I don't think the military recommends it.
Not sure if you're being sarcastic or not. (we really need a sarcasm font) but military aviation is really good at analyzing risk/benefit and we flew in some pretty dreadful conditions when we had to. It's hard to see that a flight to a charity ball game is mission critical though. It will be a high profile NTSB investigation and those guys do a very good job in breaking it all down. Who, what, where and why to the extent that they can.
