Tech workers looking for jobs may think twice before looking at job ads that are targeted at Americans but actually are intended for foreigners. iStockphoto.com hide caption

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Paul Applewhite of Applewhite Aero isn't allowed to fly this 3-pound Styrofoam plane. That's because he has added circuitry to make it autonomous — it can find its way to specified coordinates — which means it's an unmanned aerial vehicle requiring a special testing permit. Martin Kaste/NPR hide caption

itoggle caption Martin Kaste/NPR