I recently wrote another installment of the Images series, this one devoted to the videos that came out of the University of California Davis campus during the pepper spray incident. The video and various riffs on it have gone viral. The real question is whether this incident inspires a genuine rethinking of how “compliance” techniques, including pepper spray and Tasers, are used. Do we need a federal policy on these things? Based on the more than 3000 comments appended to the story I wrote on Sunday, I sense a shift on the subject of police behavior and brutality.