They’re feeling transparent. After Edward Snowden’s revelations about federal surveillance, tech leaders went to court for permission to disclose information about secret FBI demands for user data. Yesterday, Google released eight of the thousands of letters it receives each month from global agencies. “We have fought for the right to be transparent,” said Richard Salgado, Google’s information security chief. The released letters are just a tiny sample, with email addresses and agents’ names redacted, but Salgado said there’d be “a more permanent home” for such material — no doubt searchable.