Uber and Lyft slide after US proposes new gig work rule Financial TimesUber, Lyft shares tumble on possible change in work practices IG UKUber and Lyft shares slump on US 'gig' economy plan BBCUber, Lyft slump as U.S. proposal on workers a potential blow to gig economy ReutersView Full coverage on Google Newshttps://www.google.com/news