Island nation marks 1-year anniversary of disaster that left thousands dead.

Radiation levels in Fukushima Daiichi's reactor No. 1 were more than four times the yearly allowance for plant employees.

Now officials say this crisis is equivalent to 1986's Chernobyl disaster.

This one is far less severe than last month's 9.0 quake.

Now the country says they're dumping more than 10,000 tons of low-level radioactive water into the sea.

The first attempt to plug the crack fails. U.S. engineers have begun studying the Fukushima Daiichi plant disaster. Japan's farmers are hit hard by radiation concerns.

French President Sarkozy calls for new nuclear standards as workers battle to the death.

TEPCO shares, Asian stocks continue to suffer.

USC expert suggests United Nations get involved: "this is more important than the Libya no-fly zone."

One more setback in the Japanese attempt to curtail the failing nuclear plant.