An experimental nail polish line called Undercover Colors can do more than color your nails to match those shoes: it can tell if your drink’s been spiked by a dubious date. Just pretend to stir the drink with your finger, and the polish will change…
Read more http://www.engadget.com/2014/08/23/nail-polish-detects-date-rape-drugs/?ncid=rss_truncated
