_Yikes_.
The government covered up most of these radiation mishaps until 1993, when President Bill Clinton ordered a change of policy and federal agencies then made available records dealing with human radiation experiments, as a result of Welsome's work. [...]
The committee issued a controversial 1995 report which said that "wrongs were committed" but it did not condemn those who perpetrated them. The final report came out on October 3, 1995, the same day as the verdict in the O.J. Simpson case, when much of the media's attention was directed elsewhere." [0]
"The US government settled with the victims' families, paying $400,000 per family." [1]
Even if the verdict had not been announced that day, the visit of the Pope would have overshadowed the release of a 1,000 page advisory committee report which itself was only a slightly expanded investigation of an incident that had already been covered by a congressional committee report nine years earlier.
Some people use the coincidence to imply that the administration tried to bury it, but it was actually an open-government initiative by the Clinton Administration meant to highlight their pursuit of injustice and had been on the calendar for weeks, with the printing of hundreds of copies of a 1,000 page book, the scheduling of a White House ceremony, and guests having been flown in from all over the country.
The president even gave a 20-minute speech about it: https://www.youtube.com/watch?v=StId27Dmx78
Whereas it was impossible to predict when the OJ Simpson verdict would be announced.
I believe this date is inaccurate; the injections of Plutonium happened in 1945 through 1947. The Manhattan Project was disbanded in 1947. Those experiments might have continued, but they wouldn't have been under the Manhattan Project in 1950.