The 'Careless Monday' craters...what missiles in heck made them? there is no way one can load enough tritonal, even onto a C-130J, to make craters that big and deep, and they can't be nuclear otherwise the areas around the impacts would be quarantined. Projecting standard-armament technology development, there is just no way unless old Atlas rocket boosters were used to loft USAF MOAB's...
Just thinking here...
Then again, maybe they were baby nukes?