Snowden is being sought under the Espionage Act for disclosure of classified information, gathering or disclosing defense information, and embezzling public property or records. His passport was also revoked today.
If he was intending to change the story from domestic intelligence gathering overreach to himself, he's done a bang-up job.
UPDATE: Snowden was not on the flight to Cuba earlier today, raising speculation that the Russians are finding the laptops he carried with him with national security information too tempting. They may end up keeping the laptops and handing Snowden over to the U.S.
UPDATE II: Edward Snowden, the not-accidental mole. Also calling into question Glenn Greenwald's role (h/t LGF).