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US scrambles to stop globe-trotting leaker Snowden

A journalist shows a passenger a picture of former US spy Edward Snowden on a tablet, at the arrival gate of the Moscow Sheremetevo airport on June 23, 2013. The United States revoked Snowden's passport Sunday and said he should be barred from travel as hThe United States revoked leaker Edward Snowden's passport Sunday and said he should be barred from travel as he fled to Moscow en route to Ecuador, potentially setting off a diplomatic crisis.