At a Buckeye, Arizona park, police officer David Grossman observed 14-year-old Connor Leibel moving his hands rigidly in front of his face, sniffing a piece of yarn, and making other unfamiliar movements. The officer thought the boy was intoxicated, held him on the ground, and handcuffed him. Leibel was simply self-stimulating, “stimming,” a very common behavior among autistic people. On the just-released body cam video, you can hear Leibel trying to calm himself by saying “I’m O.K., I’m O.K.“ even as he sustains cuts and bruises from being pinned to the ground. Over at the New York Times, BB pal Steve Silberman, author of the absolutely essential book Neurotribes: The Legacy of Autism and the Future of Neurodiversity, writes about why this kind of horrible thing happens, how it could have been much worse, and what can be done to prevent it: