Chershnev knew that the missiles, the trucks and his crew were badly contaminated and that they should not have been ordered to drive through a city of more than 2 million people. But there was no bypass road at the time — and orders were orders. What Chershnev didn’t know in the early hours of the morning of April 30, 1986, was that a radioactive cloud had already caught up with them and blanketed the city on the eve of its annual May Day festivities.
Source: Los Angeles Times June 30, 2019 09:56 UTC