The Washington Post editorial:
The complication is that Mr. Snowden did more than that. He also pilfered, and leaked, information about a separate overseas NSA Internet-monitoring program, PRISM, that was both clearly legal and not clearly threatening to privacy. (It was also not permanent; the law authorizing it expires next year.) Worse — far worse — he also leaked details of basically defensible international intelligence operations: cooperation with Scandinavian services against Russia; spying on the wife of an Osama bin Laden associate; and certain offensive cyber operations in China. No specific harm, actual or attempted, to any individual American was ever shown to have resulted from the NSA telephone metadata program Mr. Snowden brought to light. In contrast, his revelations about the agency’s international operations disrupted lawful intelligence-gathering, causing possibly “tremendous damage” to national security, according to a unanimous, bipartisan report by the House Permanent Select Committee on Intelligence. What higher cause did that serve?
Putin’s cause I’d say.