Tony Kushner's 1993 Tony winning audacious, two-part, epic play Angels in America is now considered a classic of American theatre. If any play summed up its era - Reagan economics, gay liberation and the arrival of the AIDS epidemic, it's Angels in America. So how do its issues resonate today? Slate culture editor Dan Kois has co-written Angels in America: The Complete Oral History. He talks to Shaun D Wilson about the massive play's fascinating career.