We report on a pro-Trump pastor’s efforts to hold a gang summit on Chicago violence. A former leader of the Conservative Vice Lords describes how gangs today look nothing like they used to. Plus, a look at North Korea’s progress in developing a nuclear missile capable of reaching the U.S. mainland. We also examine the role the duplicating others’ products and procedures plays inside the tech world. It’s a mainstay of the industry and has shaped how things get done. Finally, in another installment of This Week in New Music, Run the Jewels reviews Sheryl Crow, “Halfway There,” Joey Bada$$, “Victory,” Sam Hunt, “Body Like a Back Road,” Julia Michaels, “Issues.”