Aside from a case in which the person involved openly and willingly declares their support for ISIS, I think this would be setting an incredibly dangerous precedent.
How so? If they go to fight with ISIS- they are enemies of the USA, Seems pretty black and white to me....
What do you mean by "go to fight with ISIS"?
How do you prove it?
We live in a surveillance state, world actually. All you need do is pass legislation barring presence in that warzone. People will leave electronic details as they travel. Monitor Americans overseas as they approach Syria. Have local spies circulating through the crowds and capture images of people. Run them through the NSA super-brains and out pops photo evidence of an American in Syrian territory.
That type of law is simply a variation of the laws we have which bar Americans from going overseas to have sex with children. Don't step foot in Syria, and if you do then you've committed a crime.
Still, we're prevented from stripping natural born citizens of citizenship.
So, visiting Syria = supporting ISIS?
Law makes it so. Carry $11,000 cash over a border and see what happens to you, even if you have no intent to use the money for illegal purposes. The law deems your innocent act to be a crime if you don't report the cash.
Well, no such law exists forbidding travel to Syria. Are you suggesting that there should be one?
At this point I'm not suggesting anything. I haven't thought this through. Right now I'm just engaging with you on the "how-to" aspect.
Well, travel to Syria still doesn't prove "fighting for ISIS", which is the both the premise of the thread, and the premise of the post of mine you responded to.