Body cameras have become an important topic of discussion amid the string of police brutality cases we’ve seen over the past year or two, and Richard Stallman has his own proposal for how body cameras should be used by police officers. One of the most important people in the tech world, Stallman recently published an essay in Technology Review in which he explains that body cameras should automatically turn on when a police officer pulls out their weapon, rather than having them always be on or be manually switched on and off.