I think the vast majority would agree and understand that the public can't know everything that is done in matters of national security, if only because such knowledge would itself hamper such efforts.
But we must know the parameters under which such actions are allowed to happen, and have confidence that there's someone who's arguing for the "No" case when such decisions are made. Otherwise there are no effective limits to power save the good judgment and citizenship of those acting behind closed doors — and history, our own and other nations, demonstrates what a frail reed that is to depend upon.
Embedded Link
The Laws You Can’t See – NYTimes.com
The federal surveillance court operates in secrecy as the reach of its rulings grows.