When Ranjitsingh Disale said “let’s cross the border” two years ago, 5,000 students from eight South Asian countries, including India and Pakistan, answered with a resounding “yes.” The project he built lets students from different countries interact for six weeks a year to talk about their similarities and erase their differences. “Just a few weeks ago, we interacted with students from the Lyceum School in Karachi, Pakistan,” Disale, who won ...