Well, any research related to weapons programs. Jobs/grants in the fields of laser research, AI, material sciences, mathematics, chemistry and aerospace are safe... so long as you dont talk to outsiders.
so long as you dont talk to outsiders
outsiders like... their immediate family back home?
As long as you don't step out line of course.
Friends on ML/AI hiring committees at top tier university are seeing foreign profs turn away record offers. Same for applied math relevant to material science.
I expect you are right at the most specialized end of the spectrum (and certainly industrial labs in those areas), but I wonder if anyone can speak directly to where we are still globally competitive.