A striking taxi driver holds a flare on the Promenade des Anglais during a demonstration as part of a national protest against car-sharing service Uber in Nice

A striking taxi driver holds a flare on the Promenade des Anglais during a demonstration as part of a national protest against car-sharing service Uber in Nice

A striking taxi driver holds a flare on the Promenade des Anglais during a demonstration as part of a national protest against car-sharing service Uber in Nice, France, June 25, 2015. French taxi drivers stepped up protests against U.S. online cab service UberPOP on Thursday, blocking road access to airports and train stations in Paris and other cities. REUTERS/Jean-Pierre Amet