“For so many years, two persons were inside of me,” says Deniss Metsavas, a former Russian spy. In a new documentary from The Atlantic, Metsavas tells the disturbing story of his double identity for the very first time. Metsavas, who is ethnically Russian, grew up in the U.S.S.R. After the collapse of the Soviet Union, he learned the Estonian national anthem for the first time.