U.S. communications increasingly travel across U.S. borders — or are stored beyond them. For example, the Google and Yahoo e-mail systems rely on networks of “mirror” servers located throughout the world. An e-mail from New York to New Jersey is likely to wind up on servers in Brazil, Japan and Britain. The same is true for most purely domestic communications.
Executive Order 12333 contains nothing to prevent the NSA from collecting and storing all such communications — content as well as metadata — provided that such collection occurs outside the United States in the course of a lawful foreign intelligence investigation. No warrant or court approval is required, and such collection never need be reported to Congress. None of the reforms that Obama announced earlier this year will affect such collection.