Soccer hooliganism still a threat heading into Euro 2016 (The Associated Press)

Hooliganism is making a comeback, and the timing could be bad with four high-risk matches in the first week of the European Championship in a country where the police force is already under huge strain. Police forces in France have been stretched since last November's deadly terror attacks that killed 130 people. At the French Cup final, fans managed to sneak flares and objects into the Stade de France, despite a two-meter high security wall and triple security checks, while others tried to invade the pitch, raising serious concern ahead of Euro 2016, where the opening match between France and Romania takes place on June 10.