Low-dose study finds no effects

[FBaggins]

50. Are you under the impression that there haven't been any?

There have been scores of them.

Radioactive fallout and cancer. J Amer Med Assoc, 1984 (Lyon JL, Schuman KL.)

Cancer incidence in an area of radioactive fallout downwind from the Nevada Test Site. J Amer Med Assoc, 1984; 251:230-236 (Johnson CJ)

Assessment of Leukemia and Thyroid Disease in Relation to Fallout in Utah. Report of a Cohort Study of Thyroid Disease and Radioactive Fallout from the Nevada Test Site. Contractor's final report to the National Cancer Institute under the terms of contract #N01-CO-23917, 1991. University of Utah.

Leukemia in Utah and radioactive fallout from the Nevada Test Site: A case-control study. J Amer Med Assoc, 1990;

Surgically treated thyroid disease among young people in Utah, 1948-1962, Am J Public Health, 1967; (Weiss)

The Utah leukemia case-control study: Dosimetry, methodology, and results. Health Physics 1995; (Simon SL, Till JE, Lloyd RD, Kerber RL, Thomas DC, Preston-Martin S, Lyon JL, Stevens W)

Thyroid nodularity in southwestern school children exposed to fallout radiation, Am J Public Health, 1971; (Weiss)

There's a decent bibliography at the end of this piece:
Fallout from Nuclear Weapons Tests and Cancer Risks


On edit - BTW - The official position has never been that radiation is not harmful. The official position (matched by all of the science) is that radiation is all around us and that you need to receive a significant dose before the risk increases significantly (I use the same word intentionally). There has been a great deal of study to determine what that dose is and to set guidelines for public safety well below whatever it is. The common shorthand explanation is that there is no 100% "safe" amount of radiation, but that there has been no evidence of a discernible increase in cancer risk at acute doses lower than about 100mSv.