Damn! Fusion. Your predictions are even grimmer than mine. I agree with you that Osama has already acquired nuclear weapons though. I expect that they acquired existing suitcase nukes or other full functional warheads that they were able to either bypass the safeguards or they transferred the nuclear material to another device.
I discussed why I thought It is folly to assume that Osama does not have nuclear capability because he has not demonstated it yet in this thread:
Why Terrorists Would Use Nuclear Weapons Last
Let's face facts boys and girls. Osama has nukes. There have been numerous reports over the last 6 or 7 years indicating "foiled" attempts by Islamic extremists to acquire nuclear weapons and you know what that means? For every "foiled" attempt there were probably 4 or more successful attempts. That is the nature of smuggling. It's just like drugs. If the demand is there.. and the money is right well...
At any rate is just wishful thinking to assume that Osama does not posess nuclear capability.