This just in from the Department of Ew: Your favorite lingerie shop might be reselling USED underwear. In a "Today Show: Secret Filth Exposed!" segment, reporters purchased underwear and bathing suits from eight popular retail stores, removed the tags and even stained them with baby oil, and then tested which stores would take the items and put them back on the shelf. Although the practice isn't necessarily illegal, there could be health implications. Check out this super-gross, but super-important clip.