The recorded use of deadly force against unarmed suspects and sustained protest from the Black Lives Matter movement, among others, have ignited a national debate about excessive violence in American policing. Missing from the debate, however, is any discussion of a factor that is almost certainly contributing to the violence--the use of anabolic steroids by police officers. Mounting evidence from a wide range of credible sources suggests that many cops are abusing testosterone and its synthetic derivatives. This drug use is illegal and encourages a "steroidal" policing style based on...