Four students from North Carolina State University invented “Undercover Colors,” a nail polish that can detect if a date-rape drug has been added to a drink.
A woman wearing the nail polish just stirs her drink with her finger. If a drug is in the drink, the nail polish changes color.
The nail polish is a scientific attempt to thwart a nationwide problem. A recent Washington Post analysis showed more than 3,900 allegations of forcible sex offenses on college campuses nationwide in 2012, a statistic that rose 50 percent in three years