Good point. While controversial, this is exactly why, too.
(Fed's don't want to tip their hand).
Haven't NSL gag orders been found unconstitutional?
http://securitywatch.pcmag.com/privacy/309277-judge-says-fbi...
I wonder why he didn't challenge it.
Because challenging it from a solitary confinement cell might not sound that appealing.
He shut it down because that was the only way to legally prevent the government from spying on his users.