As Axis powers swarm across Europe in the lead-up to D-Day, a small group of scientists refuse to leave their lab, throwing a fair amount of modern ethics out the window (or the sub, if you like) as they race to complete vital experiments in hyperbaric chambers -- the results of which may just change the course of the war. Tune in for part two of this special two-part series, featuring returning guest Dr. Rachel "Big Spinach" Lance, the author of "Chamber Divers: The Untold Story of the D-Day Scientists Who Changed Special Operations Forever."
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