I can't find any references to 'shooting Americans' in any news stories about this. Could it be Channel 5 news is making it up? Good heavens above!
Anyway, I did find this interesting article...
Iraq fury over Bush campaign [Fox Sports, Australia]
See, Fox reckon the football players were made to say those things by the media to get at Bush. They didn't really mean it and this won't hurt Bush's re-election prospects. We are safe.
-zudo