Russia’s security service has arrested an American reporter for The Wall Street Journal on espionage charges. It's the first time a U.S. correspondent has been detained on spying accusations since the Cold War. The newspaper denied the allegations and demanded his release. Thirty-one-year-old Evan Gershkovich was detained in Yekaterinburg, Russia’s fourth-largest city, about 1,670 kilometers (1,035 miles) east of Moscow. Russia’s Federal Security Service accused him of trying to obtain classified information. Known by the acronym FSB, the service is the top domestic security agency and main successor to the Soviet-era KGB.