Mystery objects with high radiation found on Fukushima coast

In a coastal area long silent due to the Fukushima nuclear accident, the only sounds of human activity on June 18 were from workers removing rubble and continuing their decontamination efforts. But soon, their supervisor discovered something that broke up the monotony of the work and added to the eeriness of the atmosphere. http://ajw.asahi.com/article/0311disaster/fukushima/AJ201308030015