Advance censorship is typically forbidden, for good reason. It's one thing to go after someone for lying, another thing to sit there all the time and try to make sure no lies are ever heard.
What's the difference? Efficacy in preventing lies from being aired?
What troubles me about using the word “lie” is it becomes up to a body of bureaucrats to determine what is true.
Instead, fight misinformation with superior information.
See my https://news.ycombinator.com/item?id=47233675 on pre-clearance.