As for Tibet developing nuclear technology? Please, this isn't "Blake and Mortimer". If you want a Tibetwank, complete with aggressive totalitarian regime, a secret nuclear program and world conquest, read The Secret of the Swordfish.
Heh they would need some serious money and technological upgrade (and the overall brain trust) in order to have a nuke and the thing not only do they need nuke they need missiles to deliver them.
Oh Blake and Mortimer, the memory..(ok I mostly watched the cartoon) what's amusing is that my local library never had the Secret of the swordfish so I kept wondering what the hell was that about
IIRC Blake and Mortimer was pretty much all about everyone being technologicly superior to the heroes (Japan has human like robot while France stuck in the 50's) but anyway