Anti-nuclear protesters regarded the Chernobyl accident as a clear vindication of their campaign.

In the Chernobyl nuclear accident of 1986, the biggest health effect was cases of thyroid cancer, especially in children living near the nuclear plant in Ukraine.

Accidents tend to happen late in the night or in the early morning -- as it did with the Three Mile Island disaster in 1979 and the Chernobyl disaster in 1986.