I thought you couldn't hold dual citizenship in the US unless you
were under
18....

http://www.post-gazette.com/nation/2...dual0515p4.asp

An interesting article, but there are several blatently incorrect
statements in it.

The statement that Britain considers citizenship to be irrevocable, for
example. That's incorrect. If a British citizen wants to give up his
citizenship, he can do so by visiting a British consulate and signing a
statement of renunciation.

That's just one of several inaccuracies.

Stephen