White House spokesman Jay Carney said Wednesday the U.S. government is seeking `` clarity '' about Snowden 's status . NEW : Snowden presses Russia on the United States . His lawyer says Snowden has n't received papers to leave Moscow 's airport . Snowden 's Moscow passport has been revoked ; he 's been at the airport since last month . He 's charged with espionage in Snowden after admitting he leaked data .
NEW : Snowden presses Russia on the United States . His lawyer says Snowden has n't received papers to leave Moscow 's airport . Snowden 's Moscow passport has been revoked ; he 's been at the airport since last month . He 's charged with espionage in Snowden after admitting he leaked data .