The heavy militarization of domestic police forces defines their attitude toward the citizenry. Being armed to the teeth and ready to engage with overwhelming power seems unnecessarily paranoid as well as an expression of institutional racism. Then again this is something people were beginning to talk about two years ago (i.e., during the Ferguson “unrest”), and so this doc (Vanish, 9.30), well shot and well researched as it appears to be, seems to be chasing the conversation rather than defining it.