[tortoise]

I understand the so called suitcase nukes to actually be the size of large foot lockers, 4' by 2.5' by 2.5'.

Yes, but honest-to-God backpack nukes do exist, though a bit heavy. I can't say if the Russians actually had them, but their nuclear tech was pretty decent.

[steve-b]

Yes, but honest-to-God backpack nukes do exist, though a bit heavy.

True, but as previously noted they have the shelf life of a Bill Clinton promise.