Nerve Agent Found In U.K. Is Rare And Definitely Russian

Novichok-class agents were developed in top-secret Russian labs at the end of the Cold War. Experts say only Russia is known to have made them. "They've been a deep, dark secret," says one expert.(Image credit: Chris J Ratcliffe/Getty Images)
Source: NPR Health and Science - Category: Consumer Health News Authors: Source Type: news