I'm not recommending the article, it's the usual NASA oops stuff. No, what I found interesting was the photo with the article. It'sa NASA huey gunship. Call me nuts, but the last thing I want next to a hundred odd tons of explosive fuel is a helicopter, that it's armed is just one more thing that can go wrong.

*UPDATE* Thanks to Decius, I've updated the URL to go to photo rather than the article.

NASA calls off Wednesday's shuttle launch