They're installed in upscale malls and hotels overseas, and now you can find one at the Golden Nugget Casino: a gold ATM. That's right: this new device let's you buy gold straight from a vending machine. So who's buying? And how many security guards does it require? We talk to the inventor about why there's a market for the gold ATM.

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Thomas Geissler, CEO, Ex Oriente Lux

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