>>There is no problem delivering a payload to this country. Just use a cargo ship and let er rip!
>>
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>>Today a third World Nation can have a nuclear bomb and do whatever it wants to deliver it. A guided missile is not necessary. It could be delivered by a wagon pulled by a few donkeys. It is only a matter of time before it happens. Enjoy the weekend. :)
>
>A "mere" 13 kiloton (Little Boy) and a "mere" 21 kiloton (Fat Man) did a wee bit of damage back in '45... It's intereesting to note that by the 1950s nuclear artillery shells had been developed, as well as sub-kiloton weapons like the Davy Crockett. Of course explosive yield is probably the least of your worries in the long run...

But they had the benefit of exploding at a hight maximising the damage according to the calculations,
AFAIR 500-600 meters. Real ground zero measured in height would not be efficient, even if effective enough...