That the rockets that launched America’s space program had Nazi roots was never a secret. They came to America under Operation Overcast and Project Paperclip before building rockets for the US military but didn’t become citizens until the 1950s. The US Army had them travel to Mexico then walk back onto US soil so they’d have immigration dates that weren’t confidential. But the really interesting part of the story, and the question a lot of people have when they hear about Wernher von Braun and his immigration to the US, is how a group of engineers and technicians managed to move through Germany to find American soldiers to negotiate their transfer to the states with more than a decade of research in tow. It’s a pretty phenomenal story involving quick thinking, clever deceptions, and a fair amount of luck. Read the whole story on Motherboard.