The best “clue” for what Elon Musk was up to at his Pentagon meeting came from, as per usual, the man’s Twitter. In response to a CNN article musing over his mysterious visit, the SpaceX founder tweeted that it had something to do with a flying metal suit. Clearly, he’s not mad at Tony Stark comparisons
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Source: io9 – Elon Musk’s Secret Pentagon Visit Was About a ‘Flying Metal Suit’