Editor's note: A previous version of this story included a photo of a protester being struck by a car in Louisville, Kentucky. The photo, chosen by editors, does not appear to be an example of the assaults described in the story, and has been replaced. Police have not charged the driver, but have charged two of the protesters involved in that incident. Authorities continue to investigate.
Right-wing extremists are turning cars into weapons, with reports of at least 50 vehicle-ramming incidents since protests against police violence erupted nationwide in late May.