Oh I mistook your belief of no ground war to come from Lasers in space kind of crap
I don't think Nukes will ever be a problem.
For one ICBMs are on the fast track to becoming useless due to the growing ability to intercept missiles, if need be they probably could rig up a
decent "network" within a year, however that would be costly.
US wouldn't ever use Nukes, because it would most likely win conventionally, or at least would try that route first.
Russia probably wouldn't use Nukes anyways, knowing that a similar response would be recieved, and while a nutty Leader who is going down with the
ship wouldn't mind that, the person who really has his hand on the button, or the Army would definately stop it from happening.
After all they wouldn't kill Russians to save the Soviet, what makes you think that they'd kill russians just to destroy America?
nukes are really only a threat in my opinion, from rouges.
From other nations, due to "MADD" conventional routes would be sought first, and when that fails, most likely WMDs will never be used by well to do
After all Hitler had chemicals gas, and biological weapons, and he had one VERY good reason to use them, so that he could win at anyway possible and
finish his "mission".
He didn't do this, probaby more due to the other Military commanders around him...I've not actually looked into it.
But I do think your fears of it turning nuclear is a false fear, it's not been disproven yet, but I can bet you WW3, will be fought conventionally,
and all those WMDs are there just so the enemy's WMDs dont get used on them...not as a "last revenge".