The nation’s largest police fleet of Tesla Cybertrucks is set to begin patrolling the streets of Las Vegas in November thanks to a donation from a U.S. tech billionaire, raising concerns about the blurring of lines between public and private interests. “Welcome to the future of policing,” Clark County Sheriff Kevin McMahill said during a recent press conference, surrounded by the Cybertrucks while drones hovered overhead and a police helicopter circled above him. The fleet of 10 black-and-...