One of the Cold War's most famous defectors said Tuesday that Russia may have as many as 50 deep-cover couples spying inside the United States. Oleg Gordievsky, a former deputy head of the KGB in London who defected in 1985, said President Dmitry Medvedev would know the number of illegal operatives in each target country. The 71-year-old ex-double agent said that, based on his experience in Russian intelligence, he estimates that Moscow likely has 40 to 50 couples operating undercover in the United States. "For the KGB, there's usually 40 to 50 couples, all illegal," said Gordievsky, who defected to...