One in five flights were canceled at Paris airports and other flights faced delays as air traffic controllers staged a walkout and taxi drivers disrupted roads. Twenty people were detained at protests around the French capital, according to Paris police, and i-Tele television reported that two people were injured at Orly Airport when a shuttle bus tried to force its way past a taxi drivers’ blockade. Taxi drivers say they’re suffering unfair competition from Uber, which has faced legal challenges around Europe. Uber’s lowest-cost service is banned in France and two Uber executives go on trial next month in Paris for fraud. Previous French taxi protests have also turned violent, with ambushes of Uber drivers and passengers. Uber sent a message to French customers warning of potential violence, saying the goal of Tuesday’s protest is “to put pressure on the government to … limit competition.” To read more about this event at Travel Weekly, click here.