Japan: Cleanup

A worker scooped up a layer of radiation contaminated soil and ice in the garden of a private home in Fukushima, Japan, on Tuesday, Feb. 21, 2012. A massive cleanup has begun in towns contaminated by radiation leaks from the Fukushima Dai-ichi nuclear plant, but experts leading the government-funded projects say there is no successful example they can follow, and they don't know how to judge the effectiveness of a process that is expected to last for years or even decades.