These scanners aren't new; they've been used elsewhere in the world at airports like Amsterdam's Schiphol for years, and we've seen similar ideas before. It shows only a featureless body shape (which looks sort of like a gingerbread man), and if it finds any forbidden objects during the scan, it projects them onto the corresponding location on the gingerbread drawing as yellow "hot spots." Then the offender is hustled out for the regular invasive body scan. Nobody said this new system was perfect, but it does reduce the number of invasive scans: if you're clean and the scanner realizes it on the first try, your body will remain unseen by humorless TSA types.