For decades the National Security Agency operated in the shadows, tracking America’s adversaries by listening to enemy communications. Then came a man named Snowden, and a massive leak that shattered the two conditions the NSA says it must have in order to keep America safe – secrecy, and political consensus.

Gen. Alexander: NSA Not Spying on Americans’ Calls & Emails

Fox News Reporting investigates an agency in crisis, taking viewers inside a place rarely seen – the operational heart of the NSA’s headquarters – and talks to the two men who have run the agency since the attacks of September 11, 2001 changed the very meaning of national security. They warn that politicians’ insistence on transparency will make the country less safe. And, we’ll hear from the agency’s critics, people who believe that the NSA’s massive surveillance reached too far, and should be reformed, or even shut down. It’s a contest between freedom and security, and the stakes could not be higher.

Tune in Saturday at 10p ET and Sunday at 9p ET for a Fox News Reporting special, ‘The NSA’s Secret War – Who’s the Enemy?’

Plus, use #NSABret to join a live Twitter chat with host Bret Baier, Sunday at 9p ET during the broadcast.

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