gnu-

"Radioactive cesium" in fish is a major health problem. As mentioned somewhere above Cesium-137 has a half-life of 30 years or so, and remains dangerous to roughly ten times that period. It tends to accumulate in the bodies of whoever eats it (other fish, raptors, or humans) rather than being discharged. Thus, over time, it becomes an increasing threat to life as we know it.

"TEPCO said the figure had dropped to 200,000 becquerels per cubic centimeter, or 5 million times the legal limit, in samples taken at 9:00 AM Monday."

And that's the good news...

Charley Noble