IF the land of Buddha wants to make a quantum leap to weaponisation from the Pokhran tests, it would have to spend a billion dollars. Shorn of the military jargon, "weaponisation" means India has to develop a systematic framework to manufacture atom bombs and the carriers so that they can be dropped accurately on enemy targets. The quest for an ideal atom bomb, which could be handled by army jawans or Indian Air Force technicians without the hazards of an explosion on home soil, would entail a colossal investment, say defence experts.