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.
The type of nerve agent used to poison a former Russian spy and his daughter in the U.K. was developed in a top-secret laboratory in Moscow and was once a closely held secret of the Russian government.
Sergei Skripal and his daughter, Yulia, were found slumped on a bench in the city
