Reply #11: You could be born in the US, spend the rest of your life abroad, and

[Mass]

then come back to the US and become immensely popular in a couple of year, then, if you have a lot of money, run for president on your own money knowing little about the country (aside from the obvious question of the Founding Fathers and people around this time not being natural born citizens for obvious reasons).

It is also why a US citizen born abroad does not automatically transmit his citizenship to his children. There is a residency requirement before the age of 25.

Not very shocking in both cases.