NASA chief says WSJ report that claims Elon Musk has been in regular contact with Putin should be investigated Fox BusinessMusk isn’t the first tycoon to flirt with a foreign dictator. History hasn’t been kind. POLITICOExclusive | Elon Musk’s Secret Conversations With Vladimir Putin, a WSJ Investigation – WSJ The Wall Street JournalNASA chief calls for investigation into report that Musk and Putin have spoken regularly CNNElon Musk’s secret talks with Putin ramped up during his Twitter takeover: WSJ report CNBC