Tour de France riders appeal to public via Twitter

It was a perfect summer weekend day for stage 14 of the Tour de France from Saint-Pourçain-sur-Sioule to Lyon, and the fans were out en masse to cheer the peloton along. With Bastille Day coinciding with the next big battle on the Mont Ventoux on Sunday, the race organiser, ASO, has asked riders to appeal to the public via Twitter to keep everyone safe.