There might very well be, I don't really know.

One thing though, anybody from outside the US who tries to exploit that had better recall the words to a Charlie Daniels song:

"We'll all stick together, and you can take that to the bank,
Bless the cowboy and the hippie, The rebels and the yanks"

We like to fight amongst ourselves like any siblings in a big family, but in times of trouble we are usually just that, a big family!