We have lots of freepers who think Anwar Al-Awlaki’s kids born in Yemen to one citizen parent are natural born citizens of the USA eligible to be President.
Natural born citizens are naturally citizens because they have only one nationality.
What about the case of two citizen parents, who give birth abroad. By all accounts, the child is a US citizen at the moment of his or her birth ("natural-born citizen"), but that child may have additional natural citizenships.
What if one parent is a US citizen who has additional citizenships that may be prohibitively expensive or impossible to abandon?
This question is not all black and white.