Agents of Subversion reconstructs the remarkable story of a botched mission into Manchuria, showing how it fit into a wider CIA campaign against Communist China and highlighting the intensity―and futility―of clandestine operations to overthrow Mao. In the winter of 1952, at the height of the Korean War, the CIA flew a covert mission into China to pick up an agent. Trained on a remote Pacific island, the agent belonged to an obscure anti-communist group known as the Third Force based out of Hong Kong. The exfiltration would fail disastrously, and one of the Americans on the mission, a recent Yale graduate named John T. Downey, ended up a prisoner of Mao Zedong's government for the next twenty years....