You're right. When he travels to Canada, he can get into Canada with his Canadian passport....however, he can't get back into the US without his naturalization papers or his American passport.
Exactly. Here's the truth from one of those "dual" citizens. When I became a US citizen, as far as the US is concerned, I am only a US citizen. Since the Lebanese government allows for dual citizenship, I am a dual citizen in the eyes of the Lebanese government. While I love Lebanon a whole lot of people who are there, I swore an oath to be loyal to the United States. The only problem Debbie and other Freepers have with me is that I come from Lebanon (vs any other immigrant group). Before anyone starts questioning the patriotism of naturalized US citizens, ask yourself the question about what kind of can of worms this might open. After all, I am more loyal to America than most 90% of the liberals. I for one want us to win the war on terror, unlike the New York Times, and most of the Democrat party!