Undercover Colors: Undercover Colors raises $3M to develop date rape thwarting nail polish

N.C. State University startup Undercover Colors, which is developing nail polish that's intended to thwart date rape, has just raised $3 million. The startup has been relatively quiet over the past two years, though co-founder Tyler Confrey-Maloney has confirmed the testing of a prototype. The product purportedly changes color when dipped into a drink mixed with a date rape drug. According to the securities disclosure filed Friday, 15 investors participated in the round, which is capped at $4.5...