Last weekend in Chicago’s Loop, all hell broke loose as hundreds of teens rampaged across the downtown area near Millenium Park. A bus driver was assaulted, a young girl was shot, and 21 people were arrested. It’s becoming a distressingly familiar occurrence in Chicago. Mayor Lori Lightfoot blames the parents. “Do you know where your children are?” the clueless mayor asked. Last weekend’s “Wild in the Streets” moment was the result of social media influencers spreading the word on several platforms. But the “Flash Mob” wasn’t some harmless stunt. Two officers were injured in the melee, and the general sense...