Today I listened to a great episode of Reply All, a podcast I’ve recently started enjoying. The episode featured an interview with former Twitter engineer Leslie Miley. Miley, a Black programmer (who tweets from the amazing handle @shaft!), loved his job at Twitter but felt he was constantly having to address a lack of diversity in the company. By the time a colleague suggested using a name classifier as a way to monitor their hiring process—a program to automatically identify “non–white” sounding names, which would have been unethical, likely illegal, and probably ineffective (would it have flagged the name ‘Leslie Miley’ as belonging to an African-American man?)—Miley had had enough. No one in the company seemed to think diversity at Twitter was important. So, he left and started speaking out.