The Throw-In

Today's expedited spy swap in Vienna brought to mind an even more dramatic trade: the 1962 exchange that brought downed U-2 pilot Francis Gary Powers back home, and sent "Rudolf Abel" back to Moscow to live out his days as a KGB trainer.

Yet there was a third person involved in that sensational Berlin swap: Frederic L. Pryor (pictured), a grad student who the Soviets threw into the deal at the last moment. Pryor had ended up in East German hands after making a grave-yet-understandable error...