[TheFreim]

I can see particular applications of the law being unconstitutional, i.e. improper rationale for designating a group as being a foreign terrorist organization, but generally speaking I don't expect there would be any constitutional issue with preventing people charged with materially supporting terrorism from being able to flee the country using a passport.

Is there any section of the constitution that you think would be violated by the letter of the law?

[ranger_danger]

It seems people believe it to be a 1A violation, at least that was the consensus on many different reddit threads, but I have no idea if a judge would agree.