During WWII he served again under Stimson, now Secretary of War, as his Special Assistant on Atomic Matters, serving as liaison between Stimson and the director of the Office of Scientific Research and Development, Vannevar Bush.
He served again under Stimson Secretary of War. This was as his Special Assistant on Atomic Matters. This was during WWII. This was now. He was serving as liaison between Stimson. This was during WWII. He was serving as the director of the Office of Scientific Research and Development, Vannevar Bush. This was during WWII.