The FSO is essentially the Russian equivalent to the U.S. Secret Service. The Associated Press, one of the media outlets with which the Dossier Center shared its information about Karakulov, said it independently confirmed Karakulov's identity with three sources in the United State and Europe, while also corroborating his personal details. A desertion case has been opened against him in Russia, according to the news outlets that reported on the Dossier Center's interviews with Karakulov.