Re: Well, so much for the loitering nuke theory
Not necessarily. Depends on what nuke size did they managed to build.
If they did manage to boost a fission device to a few 100kt yield using Sloika or any of the other pre-3rd idea/Ulmann-Teller approaches it does not need to re-enter. It can blow up where it is and EMP-knock out an area the size of New England off the map into the stone age via EMP. It does not need to stabilize - just send it the "blow up" command.