NEW : Kerry calls in on Snowden . His lawyer says Snowden has n't received papers to leave Moscow 's airport . Snowden 's U.S. passport has been confiscated ; he 's been at the airport since October 23 . Washington has no extradition agreement with Russia , and FBI agents who work at the U.S. Embassy there have no authority to make arrests . He 's charged with espionage in the United States after admitting he leaked data .
NEW : Kerry calls in on Snowden . His lawyer says Snowden has n't received papers to leave Moscow 's airport . Snowden 's U.S. passport has been confiscated ; he 's been at the airport since October 23 . He 's charged with espionage in the United States after admitting he leaked data .