By 1950, Adler was the subject of a Loyalty of Government Employee investigation. Adler resigned just prior to a decision by the Civil Service Commission and Treasury Department. Thereafter, Adler returned to Britain, and when his passport expired in three years, he was denaturalized and lost his American citizenship. | By 1950, Adler was the subject of a Loyalty of Government Employee investigation. Adler resigned just prior to a decision by the Civil Service Commission and Treasury Department. Thereafter, Adler returned to Britain, and when his passport expired in three years, he was denaturalized and lost his American citizenship. |