Nuclear | featured news

President Barack Obama on Monday emphasized his vision for a nuclear-free world and warned that North Korea and Iran should shun nuclear weapons or face tough action from the international community.

President Obama will join the leaders of more than 50 countries in Seoul, South Korea, next week for a nuclear security summit.

The United States exempted Japan and 10 EU nations from financial sanctions because they have significantly cut purchases of Iranian crude oil, but left Iran's top customers China and India exposed to the possibility of such steps.

The body that handles global banking transactions says it will cut Iran's banks out of the system on Saturday to enforce EU sanctions.

With a minute of silence, tolling bells and prayers, Japan will on Sunday mark the first anniversary of an earthquake and tsunami that killed thousands and set off a nuclear crisis that shattered public trust in atomic power and the nation's leaders.

Nine years ago, the United States invaded Iraq after telling the world that Saddam Hussein had covert weapons programs that could build nuclear arms. In the end, nothing was found. Today, acting on similar fears, Israel is threatening to attack Iran.

Documents show that Japanese leaders foresaw the possibility of a meltdown at the Fukushima nuclear power plant, but kept their knowledge secret for months.

President Obama sharply criticized his Republican presidential rivals Tuesday for talking “casually” about going to war with Iran, saying that when such decisions are made for political reasons, “we make mistakes.”

The offer to restart talks came in a letter from EU foreign policy chief Catherine Ashton.

President Barack Obama appealed to Benjamin Netanyahu on Monday to give sanctions time to curb Iran's nuclear ambitions, but the Israeli prime minister offered no sign of backing away from possible military action, saying his country must be the "master of its fate."