:
[1] This is a daunting task. As stated by Fuller, WALD, p. 6, “For the Michigan State Police, who bore the responsibility for the whole state, the task of evacuating Detroit would be flatly impossible because the auto city had put all its faith in public transport.”
[2] Already well known in 1966:
https://en.wikipedia.org/wiki/Radiophobia
[3] As much as some might think such an event might cause mass panic, keep in mind that there was no internet in 1966 and many people didn’t even have TVs. Radiation is invisible, odorless, and tasteless and because of this I think many people won’t take the threat seriously. People in the 1960s understood the dangers of nuclear weapons full well, but meltdowns won’t have the same psychological effect.