This article was produced in partnership with Type Investigations, where Eileen Guo is an Ida B. Wells Fellow, and is being co-published by MIT Technology Review and Consumer Reports. A few hours before dawn in early May of last year, four police officers were dispatched to an address that they had come to know: the…

This article was produced in partnership with Type Investigations, where Eileen Guo is an Ida B. Wells Fellow, and is being co-published by MIT Technology Review and Consumer Reports. A few hours before dawn in early May of last year, four police officers were dispatched to an address that they had come to know: the…