Elon Musk is the founder and CEO of the rocket company SpaceX. Musk obtained top-secret clearance in 2022. But Musk isn't privy to all of SpaceX's classified work with the US government, per the WSJ.

The Book Elon Musk Says Shaped His Vision For The Future Is Probably Not What You Think Elon Musk, the man behind Tesla, SpaceX and all things futuristic, doesn't just rely on tech to shape his ideas.