The Broadway legend has entertained audiences for four decades. He tells Anne McElvoy why he combines acting and activism and how he became a late-life TikTok sensation. And the star of “Homeland” reveals the personal story that inspired him to highlight Europe’s refugee crisis. Also, he gives us a burst of song from his days working with the late Stephen Sondheim.   Please subscribe to The Economist for full access to print, digital and audio editions: www.economist.com/podcastoffer   See acast.com/privacy for privacy and opt-out information.