Unless we are guaranteed she will be tried as an enemy combatant/traitor by the military then it’s NO.
I’m not sure I trust the military to get it right either.
So your workaround is to make civilians subject to military tribunals? Uh, hard no. Like really hard. Like, " It's time for citizens to start shooting government agents" hard.
Ron has literally typed "The US Justice system might let a guilty person go free, so we should circumvent it and punish people extra-legally". That's the opposite of how are legal system is supposed to work. We should be advocating a return to the rule of law, not trying to be in charge of the capricious rules.
I often see this Franklin quote bandied around on "conservative" places:
"Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety."
That's what some folks here are advocating though. Give the .gov the power to decide if you're a "true Citizen" so that you don't risk a terrorist attack.
It's easy to jump on this one because the lady currently in the news is pretty vile, but literally every time the people have given the government a power, the government has stretched it to encompass more. Yes,
maybe one of these women would come back, and
maybe she would escape justice in a trial, and [maybe/i] she would retain her radicalized beliefs, and
maybe she would act on those beliefs. That (and more) is a risk we take in living with freedom, (even the truncated, legislated version of freedom we currently have). You should not be willing to give even an inch more freedom up.