Inside the shadowy global battle to tame the world's most dangerous technology By Mark Scott, Gian Volpicelli, Mohar Chatterjee, Vincent Manancourt, Clothilde Goujard and Brendan Bordelon Photo-illustrations by Raphaël Vicenzi for POLITICO On a wet November afternoon, U.S. Vice President Kamala Harris and Meta’s Nick Clegg trudged into a large tent in the grounds of a 19th century English country house north of London, took their seats at a circular table, and, among other things, set about tryi...