Doesn't make a whole lot of sense to execute people with knowledge that would otherwise be useful to the enemy. If we didn't, the soviets would. There was a lot

Doesn't make a whole lot of sense to execute people with knowledge that would otherwise be useful to the enemy. If we didn't, the soviets would. There was a lot to learn from them that didn't have to do with their prior allegiances that proved valuable for weapons development, spycraft, and space exploration.