China's Hidden Children : The University of Chicago Press : 9780226529073 : 022652907X : 08 Dec 2017 : In the thirty-five years since China instituted its One-Child Policy, 120,000 children&;mostly girls&;have left China through international adoption, including 85,000 to the United States.  It&;s generally assumed that this diaspora is the result of China&;s approach to population control, but there is also the underlying belief that the majority of adoptees are daughters because the One-Child Policy often collides with the traditional preference for a son. While there is some truth to this, it does not tell the full story&;a story with deep personal resonance to Kay Ann Johnson, a China scholar and mother to an adopted Chinese daughter.             Johnson spent years talking with the Chinese parents driven to relinquish their daughters during the brutal birth-planning campaigns of the 1990s and early 2000s, and, with China&;s Hidden Children, she paints a startlingly different pictu