[cajungirl]

any weapons hidden that long won't work.

I doubt this.

[PLMerite]

"any weapons hidden that long won't work."

The triggers might not work, but the fissile material would make a dandy dirty bomb.

[Haru Hara Haruko]

Except for replacing tritium in enhanced-yield weapons, fission bombs are not high-maintenence.

The U.S. is fastidious about maintenence and modelling of the performance of old weapons, but if you don't really care if you get two or five kilotons out of a bombs, the old Soviet nukes might still be good for it.

[chariotdriver]

I think you got it cajungirl.
Even if the Russkies had infiltrated some nuclear devices into the the nation and had them squirreled away somewhere (and that is within the realm of possible) the replenishing of all the time limited components would (without notice) be very difficult for al-Qaida. or anyone else including the Russkies to accomplish.. A cursory research on nuke technology will show that.

Besides, if anyone any group any nation ever detonates any kind of nuke anywhere near US territory (yes EMP too) they have signed their own death warrant