The New York Police Department’s Civilian Complaint Review Board (CCRB) reported that over a three-year period, NYPD officers threatened, blocked, and otherwise tried to prevent individuals from recording them in public in the performance of their duties. Almost 100 of the 346 allegations made between 2014 and 2016 were substantiated by the board, not counting the many cases that may not have been reported. To be fair, there are many thousands of contacts between police and individuals that happen in New York City. Although there is no way to know how many of those interactions are recorded,...