On June 9th, Shizuoka prefectural government admitted that green tea produced by a local tea farmer contains radiation (cesium) higher than the officially-permitted level. Shizuoka, as you may know, is Japan's biggest tea-growing area.
Not only tea, but also some Japanese agricultural products are also damaged by the radioactive contamination. Japanese farm products were widely esteemed for their safety and we were proud of it. In order not tarnish its reputation any further, accurate data and information are “must”. And I believe this is Japan's responsibility, too.