FULL TITLE: Now Elon Musk faces US Air Force investigation into his wild weed-smoking podcast because the drug-taking breaches SpaceX security clearance rules The US Air Force is looking into Elon Musk after he smoked marijuana during a wild, rambling two-and-a-half-hour podcast streamed live onto YouTube, it emerged on Friday. Marijuana use is prohibited for people with government security clearance, which Musk gained in 2015 when his company SpaceX started launching satellites for the Pentagon. The US Air Force told DailyMail.com a formal investigation is not underway at this time, but would not rule out that members of the department...