Originally Posted by mitchmu

This is not a true statement. There are very dangerous US laws about the use of multiple passports and the act of exercising dual nationality that apply to US citizens who acquired citizenship by naturalization. The consequences for such a citizen are a lot different than for a US citizen by birth. The short version is that, as a naturalized US citizen, the act of using a foreign passport can be deemed to be proof of intent to relinquish US citizenship and that can cause immediate and permanent expulsion from the country.