A federal appeals court has turned down a Freedom of Information Act request related to the 2010 cyberattack on Google users in China.
The request from the Electronic Privacy Information Center was to disclose communications between Google and the U.S. National Security Agency. The center focuses on privacy and civil liberties.
But the NSA refused to confirm or deny whether it had any relationship with Google. NSA argued that doing so could make U.S. government information systems vulnerable to attack.
A federal district court judge sided with the NSA last year. On Friday, a three-judge panel of the U.S. Court of Appeals for the District of Columbia upheld the ruling.