Russian security forces dealt a double blow to the al Qaeda-linked Caucasus Emirate during operations in the southern Russian republics late last week. Emir Magas, the military commander of the Caucasus Emirate, was captured and Yasir Amarat, a wanted terrorist commander from Jordan, was killed during raids by Russia's Federal Security Service, or FSB. On June 9, the FSB captured Emir Magas, whose real name is Ali Taziyev, during a raid in the village of Malgobek in the Republic of Ingushetia. Kavkaz Center, a jihadist website that supports the Caucasus Emirate, confirmed Magas' capture and noted his importance. Magas has...