Our chronically leaky national governments could learn a thing or two about opsec from Taylor Swift’s wedding planners. Rumors swirled for weeks in the run-up. New York streets were closed off. Mysterious delivery vans arrived with exotic cargos such as lobster, roses, or “branches”. Guests reportedly signed NDAs. Then, on 4 July, at Madison Square Garden, the iconic arena in midtown Manhattan, the billionaire pop superstar wed Kansas City Chiefs American football star Travis Kelce, in a celebration attended by 1,000 of the couple’s closest friends. There were barriers, and guards. No phones were allowed at the ceremony. It was both the most public and the most private event of the year. It took place on the day of America’s 250th anniversary, and bore all the hallmarks of Swift’s longstan