“I will never forget the day that article appeared in the Native,'' Tony Kushner told me not long ago. In 1993, Kushner received a Pulitzer Prize for his play Angels in America, which addressed the impact of AIDS on American society. “I was in graduate school at N.Y.U. in 1983, and I was in the second-floor lounge in the directing department. Stephen Spinella, who went on to perform the lead role of Prior Walter in Kushner’s dark epic, was sitting across from him on a sofa.