British authorities have charged two Russians over the attempted murder of Sergei and Yulia Skripal in Salisbury, England, using the military-grade nerve agent Novichok. Sergei, a former double agent, was targeted by Alexander Petrov and Ruslan Boshirov, according to Scotland Yard and the Crown Prosecution Service, who say the men arrived in Britain on Russian passports. The authorities have not bothered to make a formal extradition request to Russia because Moscow does not extradite its own nationals.
