There is no shortage of gripping tales and heartbreaking stories from the Korean War. Most narratives feature epic battles, larger-than-life military commanders and ideological suspicions that tore apart millions of families. 

But comparatively little has been written about the espionage and shadowy spies that drove the first hot theater of the Cold War. 

In his new book, “Agents of Subversion,” John Delury sheds light on the forgotten life of John T. Downey, a CIA officer who holds the record for the longest time spent as a U.S. prisoner of war (POW).

While primarily focused on U.S.-China relations, the book reveals