FUKUSHIMA RADIATION: STILL A THREAT?

It's been almost a year since the disaster at Japan's Fukushima Dai-ichi nuclear facility. And still the question remains: is it safe?

Many residents of the surrounding region have moved back to their homes and farms, but the Japanese government has still kept a large part of the city of Fukushima closed -- the so-called "no-go" zone that extends 12 miles around the facility.

While none of the nuclear plant workers died of radiation exposure last March, many got doses beyond safe levels as they fought to keep the plant from melting down in the days after the killer earthquake and tsunami knocked out power to the reactors.

Experts in the U.S. say the amount of radiation that spewed from the crippled reactors was about 10 percent of what was released at the Chernobyl disaster in 1986. Still, they caution that the long-term health effects on both residents and workers are still mostly uncertain.

Source:Discovery