evidence: Iran has accumulated enough enriched uranium to build a nuclear bomb, according to new findings from the United Nations atomic agency. [...] The U.N. nuclear watchdog said that Iran’s stockpile of uranium enriched to 60 percent had grown to 43.3 kilograms (95 pounds), which represented an increase of nearly 10 kilograms (22 pounds) compared to three months ago. [...] "Iran has now accumulated enough enriched uranium to be able to quickly produce more than a significant quantity of HEU (highly enriched uranium) for one bomb," said Daryl Kimball of the Arms Control Association think tank. "The time it would take them to do that can now be measured in days, not months or weeks."