The Maryland District Court indictment of Mikerin and three others said that the FBI paid attention to suspicious financial transactions after a tip from a "confidential source" (in the indictment, he is called CS-1). Two friends of Mikerin and a person close to Rosatom believe that this is an employee of the American consulting company Sigma Transnational.<ref>http://compromatwiki.org/Ядерные_схемы_Вадима_Микерина</ref> CS-1 is now represented by prominent [[Washington DC]] attorney Victoria Toensing. Toensing said the FBI informed her client [[President Obama]] was briefed on the matter while the investigation was ongoing.<ref>https://www.cnsnews.com/blog/michael-w-chapman/atty-toensing-uranium-scandal-obama-was-briefed-russian-bribery-kickback</ref> In November 2017 CS-1 was identified as William J. Campbell. | The Maryland District Court indictment of Mikerin and three others said that the FBI paid attention to suspicious financial transactions after a tip from a "confidential source" (in the indictment, he is called CS-1). Two friends of Mikerin and a person close to Rosatom believe that this is an employee of the American consulting company Sigma Transnational.<ref>http://compromatwiki.org/Ядерные_схемы_Вадима_Микерина</ref> CS-1 is now represented by prominent [[Washington DC]] attorney Victoria Toensing. Toensing said the FBI informed her client [[President Obama]] was briefed on the matter while the investigation was ongoing.<ref>https://www.cnsnews.com/blog/michael-w-chapman/atty-toensing-uranium-scandal-obama-was-briefed-russian-bribery-kickback</ref> In November 2017 CS-1 was identified as William J. Campbell. |