A solemn event presided over by French President Francois Hollande to remember those who died in World War I turned into a shouting match Monday after protesters booed the unpopular leader. To the anger of others who had come to commemorate the millions killed in the 1914-18 war, protesters shouted "Hollande resign" and "Socialist dictatorship" as the president was driven up the French capital's famous Champs-Elysees avenue. You're a disgrace for France!", one onlooker yelled at the protesters during the Remembrance Day ceremony. Scuffles broke out between protesters and security forces, and police said 73 people had been detained, some of whom were linked to far-right movements, including a grouping called the "French Spring" that opposes France's gay marriage law.