Japan is honoring the victims of the disaster, which killed 19,000 people and displaced 300,000 more.
Read more...Public fear has the potential to cost 15 times more than the original wreckage of a "dirty bomb" attack.
Read more...Radiation levels in Fukushima Daiichi's reactor No. 1 were more than four times the yearly allowance for plant employees.
Read more...Many Eastern Europeans are still feeling the effects of the worst nuclear disaster in history.
Read more...Now officials say this crisis is equivalent to 1986's Chernobyl disaster.
Read more...One more setback in the Japanese attempt to curtail the failing nuclear plant.
Read more...Japan also continues to deal with a nuclear crisis.
Read more...Experts say minuscule particles from Fukushima have reached Europe.
Read more...VIDEO: Reports of unrest and public anger are on the rise as fear of danger spreads.
Read more...How similar are the two disasters? Not very, experts say.
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