For many years, African-Americans have faced discrimination on street corners, getting bypassed while hailing a cab. Now academic researchers say they have found a similar pattern of discrimination involving popular ride hailing apps. The findings were based on some 1,500 trips in Boston and Seattle. In Boston, Uber drivers cancelled rides for passengers with African-American sounding names more than twice as much as for people with white sounding names. And in Seattle, African-Americans waited significantly longer for ride requests to Uber and Lyft to be accepted.