Police abuse of power often involves not only the abuser but also other officers who enable the abuse through inaction and silence. They are virtually never prosecuted, meaning that a crucial precedent could be set with the trial that began Monday for the three former Minneapolis police officers who did nothing to forcefully intervene as Derek Chauvin murdered George Floyd. The case against Chauvin, convicted last year, was straightforward: Video from a bystander documented how the white officer knelt on the neck of his Black victim for more than nine minutes on May 25, 2020, ignoring Floyd’s …