Comment by toast0

Forcing her to fly back immediately (and detaining until the flight if not immediate) seems reasonable, but both countries at a land crossing can't refuse entry. The article states she was refused entry to Canada, and then detained when she returned to the US; I don't know if there are international norms here, but I think in this situation if both countries would refuse entry, one of them has to accept entry and consider immigration detention; and it doesn't seem unfair for that to be the country where the person in question was before the first crossing?