There is a Russian General on record as saying that there are a number of backpack nukes that are ‘missing’.
And I don’t know why all of you are saying that he can’t have them, because he would have used them already if he did. I see no reason to believe that whatsoever. I would find it FAR more likely that he would keep his ‘big guns’ in reserve and use them as a last resort.
The way I see it, the initial attack could have been done in hopes that it was a catalyst - that it would mobilize the muslim world against the west, and bring about the clash of civilizations that Bin Laden wants. Failing that, he could hope that the U.S. wouldn’t have the balls to retaliate.
Neither of those things happened, so now it’s on to phase II.
The nightmare scenario is that we get an ultimatum from Bin Laden soon, saying “I have nuclear weapons positioned in several of your cities. Withdraw your forces from Afghanistan, remove your forces from Saudi Arabia, and stop supporting Israel. You have 48 hours to begin withdrawal, or I will detonate a bomb.”
What do we do if he says that? Ignore the warning? You can’t search every city in North America.
So then we ignore the warning, and suddenly a 10 kt weapon goes off in Manhattan.
Now we get another ultimatum: “You have 48 hours to remove your troops, or the next city goes. I have several more bombs in your cities.”
This is the scenario that is probably giving the administration fits right now.
Oh, and if he has the weapons, he can kill a lot of people with them even if they can’t be used as nuclear bombs. He still has the Plutonium, which can be broken up and used in a ‘dirty bomb’, which is something like a fertilizer bomb with plutonium dust spread through it. Detonate one of those, and you can contaminate a city.
And 2kg of Plutonium could be used to make a dozen of those kinds of bombs.
Overall, I put the chance of this happening as ‘slim’, but considering the horrific consequences, ‘slim’ doesn’t make me feel a lot better.