The space entrepreneur Elon Musk is unlikely to receive government security clearances if he so applied, even as his SpaceX launch company blasts military and spy agency payloads into orbit, according ...

While that's technically the highest level of Defense Counterintelligence ... Musk Being Investigated for Violating Terms of ...

The levels of clearance are confidential, secret and top secret. There are also private sector security clearance jobs in finance, education and healthcare.