Can't you just get the money, change your name, and move somewhere else? Then you can buy any politicians/media personalities/whoever it takes to say that there was a mistake with the name, and that the real name is (whoever you hate). Then come back home and say you just were away on vacation.

If you have half a million bucks there's a lot of very simple creative solutions to this problem.

Edit: I meant half a billion. Looks like my math skills are getting down to Dr. Evil's level