On a weekday morning in May, the Hack Latino app issued an alert to its users: There were five Immigration and Customs Enforcement patrol vehicles on a certain avenue in Grand Island, Nebraska. “Watch out!” the message urged in Spanish. Hack Latino is an artificial intelligence-powered app for Latinos in the U.S., made by the Georgia-based entrepreneur Adrian Lozano Jr. It offers restaurant suggestions and consular information to more than 30,000 users, along with a key feature to keep them safe...