This summer, all eyes are on North America as Canada, Mexico, and the United States host the 2026 World Cup. The “beautiful game,” as soccer (or football) is sometimes called, tends to bring people together who otherwise would never cross paths. For instance, citizens of Lawrence, Kansas, welcomed the Algerian national team to set up their home base in the University of Kansas town during the global tournament. But the sport has a dark side, too. Though most fans only want to cheer for their team and enjoy the game, a small subset takes their diehard support a little too seriously, ...