Greg Chung was a nice guy. He had a family, a nice house, he was generous to those around him, and he was a hard worker.
He worked diligently to become a U.S. citizen after coming over from Taiwan. He thrived at Boeing as a structural engineer, specializing on big projects like the space shuttle.
But Greg Chung also worked as a spy for the Chinese government. Yudhijit Bhattacharjee writes about Chung's story in the latest issue of the New Yorker and joins Tess Vigeland to chat on Take Two.