[snerbles]

Having once held a U.S. security clearance, I can guarantee you that Defense Intelligence Agency investigators are going to have a word or two with Musk. Occasional "experimental" marijuana use prior to the clearance issuance is often waived, but any use after can be a bit of a problem.

[xedeon]

True for the most part regarding waivers on service members and civilian federal employees. But false in this case, see above.

[snerbles]

Not saying the clearance will be revoked, rather a "Please don't do that again" accompanied with a mild finger wag.