Interesting read for anybody that cares to find out how Google handles FISA requests
http://googleblog.blogspot.com/2014/03/transparency-report-requests-for-user.html
Bonus : Video FISA reqests for dummies
http://www.youtube.com/watch?v=MeKKHxcJfh0
Good bit IMO is the end of the blog post
"You deserve to know when and how governments request user information online, and we’ll keep fighting to make sure that’s the case."