However. the Attorney General can only prosecute a perpetrator of genocide if he committed his crimes within the United States or is a U.S. national. What does this mean? It means that if a person who plans or participates in the genocide occurring right now in Darfur travels to the United States on vacation. business. or even to live here for an extended period of timeas a refugee or student. for instancea court in the United States cannot touch him. The best our justice system can do is deport him once his crime is discovered. Without question. it may be more appropriate in some cases to extradite someone who commits genocide to his home country or turn him over to an international tribunal.