At four inches by one inch and weighing half of an ounce (16 grams),Black Hornet is more Pixar character than fighting drone. And like a Pixar character, one gets the sense that though it is now in the secret agent arsenal of at least three countries—the United States, or Britain and Israel—it could easily be swatted away,with the expend of a powerful fan as an effective countermeasure.
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Source: gawker.com