A gesture associated with the Nazis has a surprising history. But in Germany, there was little doubt about its meaning.

MARTIN: And later today, a new rocket built by Elon Musk is also scheduled to launch. NPR's Geoff Brumfiel has been following this billionaire space race, and he's with us now to tell us more ...

At Trump's Presidential Inauguration, Elon Musk sat front-row along with Jeff ... History, Ideology" by Martin M. Winkler. The Roman salute survives as a raised-arm salute used for political ...