Four male students at North Carolina State University are attempting to create a nail polish that changes color in the presence of date rape drugs, such as Rohypnol, Xanax, and GHB. “With our nail polish, any woman will be empowered to discreetly ensure her safety by simply stirring her drink with her finger. If her nail polish changes color, she’ll know that something is wrong,” say the students, whose Raleigh, N.C.-based start-up is called Undercover Colors. “While date rape drugs are often used to facilitate sexual assault, very little science exists for their detection. Our goal is to invent technologies that empower women to protect themselves from this heinous and quietly pervasive crime.” Currently in the R&D phase, the company is seeking donations. Whether or not they are ultimately successful — and there are likely to be challenges — we give these concerned students an “A” for effort.