Activists projected a video onto the façade of a Tesla factory in Berlin, Germany, depicting Elon Musk making a gesture that has been interpreted by some as a Nazi salute. The image showed Musk next to the word "Heil,

The "Sieg Heil" heard 'round the world has made its way to Germany, where activists are using that infamous image to protest Tesla's Gigafactory.

Elon Musk, the world's richest man, standing behind a podium bearing the Seal of the President of the United States, on Monday twice gave what scholars, journalists and rights groups said was a Hitlergruß,