The day snowdenafter ABC News announced its World News anchor Diane Sawyer had landed an exclusive interview with Hillary Clinton about her new book, NBC News trumped that with the announcement its Nightly News anchor Brian Williams had traveled to Moscow for an exclusive sit-down with Edward Snowden — the former NSA contractor’s first American interview since revealing NSA information to the press.

The hour-long interview will air as a primetime special on Wednesday, May 28 at 10 PM ET. Williams’ rare in-person conversation with Snowden was conducted over the course of several hours; the network says it was “shrouded in secrecy due to Snowden’s life in exile since leaking classified documents about U.S. surveillance programs a year ago.” For the special, Williams also interviewed Snowden and Glenn Greenwald jointly about how they came to work together and the global debate sparked by their revelations.