If you become an enemy of America should you be allowed to return?
https://www.theguardian.com/world/2019/feb/17/us-woman-hoda-muthana-deeply-regrets-joining-isis-and-wants-return-home
https://www.independent.co.uk/news/world/middle-east/american-isis-bride-hoda-muthana-us-authorities-alabama-al-hawl-a8784056.html
https://www.independent.co.uk/news/world/middle-east/american-isis-bride-hoda-muthana-us-authorities-alabama-al-hawl-a8784056.html
...developing...