The head of the U.N. nuclear agency warned that as many as 30 countries could soon have technology that would let them produce atomic weapons "in a very short time," joining the nine states known or suspected to have such arms.
The U.N. nuclear-watchdog agency has found that Taiwan's experiments with plutonium extended up to the mid-1980s, diplomats said yesterday, uncovering a key detail about the country's now-abandoned nuclear-weapons program.