athens greece supreme court decide dec. 13 whether extradite russian unite state authorities want put trial launder billion via bitcoin platform alexander vinnik say bitcoin consultant accuse u.s. authorities run btc-e exchange allege conduit launder proceed illicit activities vinnik deny charge fight extradition unite state think independent justice unite state russian citizen vinnik tell court session athens also say condition american prisons terrible address court greek public prosecutor recommend vinnik extradition 38-year-old arrest northern greece basis u.s. warrant july one seven russians arrest indict worldwide year u.s. cybercrime charge since arrest russia also seek vinnik extradition less charge fraud vinnik agree extradite russia compete request nature final decision vinnik extradite rest greece justice minister greek top court decide dec. 13 russia cyber suspect extradition