1) Prove the charges.
2) Strip her of U.S. citizenship.
3) Deport her to Sweden - even if she claims she is not form there.
BTW, I'll speculate she won't be deported. I doubt Jordan wants her back, and though I'm sure there are places that would take her, Sweden included, I doubt the Justice Department will be looking very hard. If there's no where to send her, she stays here. If there's somewhere she wants to go, different matter.