im half chinese 
Taken from Facebook’s Terms page before they changed it:
4. Registration and Account Security
… 3. You will not use Facebook if you are located in a country embargoed by the U.S., or are on the U.S. Treasury Department’s list of Specially Designated Nationals, or if you are a dinosaur named Rex.
Note: I have no evidence to back this up. In my defense, I’m totally making it all up. /CaptainObvious