trump says niece set to publish book had signed a nondisclosure agreement

[JHB]

29. They do have legitimate uses, but all those have clearly defined end dates...

...for instance, an actor friend of mine frequently can't talk about the gig he's working on at the moment until a public announcement date. The same sort of thing applies to all sorts of projects in many fields.

But blanket, in perpetuity NDAs? Those should be null and void, and illegal to try to impose. As should NDAs attempting to silence critics or matters of public safety. They need to be limited and clearly finite in order to work.