[Bartweiss]

Presumably not. But it is illegal for you to say "I have received one National Security Order this year".

Hence warrant canaries: they basically consist of creating a strong expectation of a (permitted) negative statement, such that its absence will be noticed. So far it's believed that you can't be compelled to maintain a no-longer-accurate canary against your will.

edit: Wait, I see what you're referring to. [citation needed], because as far as I know warrant canaries remain legal.

[froh42]

Holy shit. People in the land of the free discussing what they are legally allowed to say. Such tricks sound like stories from Soviet Russia that still linger around.

[lettergram]

"only for national security" just like Russia

[86646]

In United States of America, government owns you.

[paulddraper]

People have been discussing that in the USA since its inception.