The US Justice Department has secured the denaturalization of two criminals who obtained U.S. citizenship through fraud, including Ukraine native Vladimir Volgaev, Cuba native Mirelys Cabrera Diaz, and Lebanon native Alec Nasreddine Kassir. The actions were part of the Department of Justice's ongoing efforts to remove citizenship from individuals who conceal crimes or defraud the American people during the immigration process. The Justice Department also sued to revoke the citizenship of Kassir, who falsely claimed to have been living with a U.K. citizen spouse for three years prior to naturalization.