Cambridge, Massachusetts, is the home of Harvard University. This was Cambridge last week: And this was Cambridge on Monday: A slew of liberal activists descended upon the Cambridge City Council in recent weeks to get the city to disable its gunshot detection devices, which help police pinpoint where gunshots are coming from to better respond to shootings. Police Commissioner Pauline Wells begged the council on Monday not to deactivate the devices, citing multiple recent cases where lives have been saved due to the system, but to no avail. More from the Harvard Crimson on April 30: In a presentation Wednesday,...