[rolph]

depending on the field of research there are considerations, that most universities dont have to worry about for the time being.

i think we could be nudging up against a born secret mentality.

https://en.wikipedia.org/wiki/Born_secret

I would be concerned about this concept being widened beyond nuclear energy research.

as an example computer ubiquity and internet connectivity allow 4th/5th gen warfar to exist. If encryption or miniturization, or transmission media were considered subject to born secret doctrine that could make things very difficult and somewhat partisan.

[inflatableDodo]

Legally, until someone properly tests that in court, then it is not even really law yet. Also, as a legal conceit, it doesn't continue to apply to people after they emigrate from the US.

I feel also, that you can't really go around telling people that they are banned from emigrating due to what they know, unless you also have a labyrinth containing a minotaur, fed with captured foreign citizens.

Although, I have to say, it would not greatly surprise me by this point to learn that this was in fact the case.