“ShotSpotter manufactures the urgency of an active threat, offering situations where there is likely no risk, but where police can operate within a narrative of extreme risk.” In this episode of Movement Memos, Kelly talks with Chicago organizers who are attempting to rid their city of an acoustic surveillance system that is both ineffective and dangerous. Kelly also digs into the question of why police might want a multi-million dollar gunshot detector that doesn't work. You can find a transcript, audio and show notes on our website.