Mainichi: Courts find black rain from A-bomb was more far-reaching than gov't acknowledged http://mdn.mainichi.jp/mdnnews/news/20120113p2a00m0na007000c.html
[Excerpted] "Eight lawsuits brought against the government by plaintiffs seeking certification of radiation sickness from the "black rain" that fell on Hiroshima after the city's atomic bombing in 1945, have seen rulings that rain fell in a broader area than was indicated by a study on which national assistance eligibility was based, and that far more people may have been exposed to radiation, it has been learned..."
Majia here: A related account is documented by Greg Mitchell in his book, Atomic Cover-Up
The lessons for our current situation are clear. Governments are not to be trusted when public health is compromised by nuclear (or oil for that matter).