“Can we even have the certainty that all is uncertainty?” I ask.

“Here’s my problem,” Morris replies. “My article of faith is that there’s a real world out there in which things happen. The real world is not indeterminate. I don’t want to hear people misinterpreting the Heisenberg Uncertainty Principle. Something happened. The problem is not about the nature of reality. We know somebody killed Kennedy and there’s an answer to the question of who and why.

“Another thing we know is that we may never learn. And we can never know that we can never learn it. We can never know that we can’t know something. This is the detective’s nightmare. It’s the ultimate detective’s nightmare.”

The Goldsboro bomb that almost detonated was known as Weapon No. 1. As the plane was spinning and breaking apart, the centrifugal forces pulled a lanyard in the cockpit–and that lanyard was what a crew member would manually pull during wartime to release the bomb. This hydrogen bomb was a machine, a dumb object. It had no idea whether the lanyard was being pulled by a person or by a centrifugal force. Once the lanyard was pulled, the weapon just behaved like it was designed to.

The bomb went through all of its arming steps except for one, and a single switch prevented a full-scale nuclear detonation. That type of switch was later found to be defective. It had failed in dozens of other cases, allowing weapons to be inadvertently armed. And that safety switch could have very easily been circumvented by stray electricity in the B-52 as it was breaking apart. As Secretary of Defense McNamara said, “By the slightest margin of chance, literally the failure of two wires to cross, a nuclear explosion was averted.” That’s literally correct, a short circuit could’ve fully armed the bomb.

Q: Do you think much about what your legacy will be?

King: No, not very much. For one, it’s out of my control. Only two things happen to writers when they die: Either their work survives, or it becomes forgotten. Someone will turn up an old box and say, “Who’s this guy Irving Wallace?” There’s no rhyme or reason to it. Ask kids in high school, “Who is Somerset Maugham?” They’re not going to know. He wrote books that were bestsellers in their time. But he’s well-forgotten now, whereas Agatha Christie has never been more popular. She just goes from one generation to another. She’s not as good a writer as Maugham, and she certainly didn’t try to do anything other than entertain people. So I don’t know what will happen.