This is how the scam works -- the government spies on you in secret, and issues a gag order to prevent anyone who knows about the spying from talking about it. That way, if you don't know that you're being spied on, you can't complain (because you don't know that you have cause for complaint); if you do know that you're being spied on, you can't complain (because you'd be Gitmoized for violating the gag order). Win-win for the jackboots; lose-lose for the Constitution.
Your privacy is violated only if you know about it.
See this article.
Or, more humorously, Colbert Savages NSA and Rep. Mike Rogers in 'See No Evil' Segment.