I don't think the DDT trucks were dangerous to human beings. I did watch a multi-helicopter formation of Paraquat bombing in San Diego in the 70's, which actually could have been hazardous to humans, collateral casualties in the War On Drugs.
What was really amazing was that my little brother and I could get on our bikes and pedal four or five miles to hang out downtown all day with no one molesting us and only Mom worrying, which is what Moms do. Worst thing that ever happened was a flat tire and if you didn't have a repair kit your friends considered you a weenie and you never EVER admitted you had to find a pay phone to call home for help. Assuming you had a dime. Which you often didn't. I shall be happy to explain in a separate communication what a "pay phone" was to younger FReepers...
“I don’t think the DDT trucks were dangerous to human beings.”
DDT was not dangerous to anything except harmful insects.
I rather imagine that Rachael Carson is rotting in Hell for the millions of deaths she brought about.