Prior Restrain is totally valid in the US and there are many many circumstances where it can be used. Try breaking a gag order, or tweeting your location while fighting in Iraq. Or quit the NSA and start revealing secrets. This whole idea anyone can say anything is simply not true, and frankly shouldn't be true. Some facts are very very dangerous.

I certainly don't want simple plants for bomb making out on the internet.... I'll happily give up certain rights for that.