Eric Garner and the limits of police body cameras

In the wake of several high-profile cases in which police killed unarmed civilians, equipping officers with wearable cameras has emerged as a popular solution for reining in abuse and boosting accountability. Notably, President Obama wants to spend $253 million to outfit the nation's police with 50,000 more of devices. Yet as the non-indictment in the Eric Garner chokehold case shows, body cams are hardly a panacea for the problem. There is video evidence of NYPD officer Daniel Pantaleo placing ...