"Google Takes on ---===[ Rare Fight ]===--- Against National Security Letters

Google has filed a rare petition to challenge a... national security letter... extraordinary petition... etc. etc."

I don't think they could emphasize rare and extraordinary more than that. Also, like I said above - they're still complying with funnelling _all_ data to the NSA, a practice which dwarfs the exercise of opposing some NSLs.

Finally - there's the fact that they don't leak all those NSLs. Why don't they? Those NSLs belong on WikiLeaks, for sure.