ATHENS, Greece (AP) — Greece's supreme court has approved a Russian extradition request for a bitcoin fraud suspect, adding a new twist to competing cases in three countries that want to prosecute the detained computer expert on their turf. The decision published Friday upheld a lower court ruling allowing 38-year-old Alexander Vinnik to be tried in his native Russia for alleged fraud worth 750 million rubles ($11 million.) The Greek supreme court also has accepted an extradition request from the United States, where Vinnik is accused of allegedly laundering billions of dollars with bitcoin.Read more on NewsOK.com