Thus began a most remarkable unveiling of the Chinese nuclear weapons program, a deliberate disclosure of its nuclear crown jewels to a central player in the American nuclear intelligence community. Chinese officials knew exactly who Stillman was. It is clear they chose to show him, firsthand, the achievements of their nuclear world. They wanted Stillman to take the information home, to tell the American government, the scientific community, and the citizenry at large all about China's technical capabilities. Why would the Chinese government do that? Nuclear weapons design information is supposed to be a deep, dark secret.