From Thatcherism to global crisis to an ever-online world, she has chronicled our race to the abyss. Now she’s written a play about a blond-wigged voicepiece for an un-named, strongman ruler. Who can she mean? Triumph, which has just opened at London’s Almeida theatre, is Caryl Churchill’s latest piece of explosive minimalism. Running at just 20 minutes, it skewers contemporary barbarism without mentioning the names of Trump, Putin or any of the other supposedly strong national leaders. It works through historical analogy and is a reminder that Churchill – while “always ahead of the game” in...