"They were designed to fit inside existing firearms as an alternative to shooting someone with a real bullet, often as a way for authoritarian regimes to control a free-speaking, free-protesting populace. And that’s exactly what we’ve seen happen yet again today. As protesters have taken to the streets across the U.S. to protest the murder of George Floyd, they’ve been shot, indiscriminately, with military technologies that are known to maim and kill."There are some graphic images in this article but it has a good history of how not-as-lethal weapons became ubiquitous. It gives important context to gut-wrenching stories like this: Activist who trained officers on bias ‘heartbroken’ after San Jose police seriously injure him with rubber bullet at protest.