How a CIA informant stopped Taiwan from developing nuclear weapons

In January 1988, one of Taiwan’s most senior nuclear engineers defected to the United States after passing crucial intelligence on a top-secret program that would alter the course of Taiwan’s history. Colonel Chang Hsien-yi was a leading figure in Taiwan’s nuclear weapons project, a closely guarded secret between the 1960s and ‘80s, as Taipei raced to develop its first nuclear bomb to keep pace