Wired – The object, vaguely pink, sits on the shoulder of the freeway, slowly shimmering into view. Is it roadkill? A weird kind of sagebrush? No, wait, it’s … a puffy chunk of foam insulation! “The laser almost certainly got returns off of it,” says Chris Urmson, sitting behind the wheel of the Prius he is not driving. A note is made (FOD: foreign object or debris, lane 1) as we drive past, to help our computerized car understand the curious flotsam it has just seen.
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