In this photo taken Monday, Feb. 20, 2012, a man washes a door in a bathtub, in an attempt to remove radioactive contamination, at a private house in Hirono, outside Japan's nuclear exclusion zone. A ... more 
In this photo taken Monday, Feb. 20, 2012, a man washes a door in a bathtub, in an attempt to remove radioactive contamination, at a private house in Hirono, outside Japan's nuclear exclusion zone. A massive cleanup has begun in towns contaminated by radiation leaks from the Fukushima Dai-ichi nuclear plant, but experts 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. (AP Photo/Greg Baker) less 
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Associated Press | Photo By Greg Baker
Mon, Mar 5, 2012 3:56 AM EST