More recent sources, lawyers advised him not to try for higher clearance because of the drug use: https://www.thedailybeast.com/elon-musk-denied-access-to-space

More recent sources, lawyers advised him not to try for higher clearance because of the drug use: https://www.thedailybeast.com/elon-musk-denied-access-to-spacexs-biggest-government-secrets-over-drugs-and-foreign-contacts/ https://www.thedailybeast.com/elon-musk-denied-access-to-spa...