SECNAV ltr to FBI Director Hoover Assuming Responsibility for Civilian Investigations of Espionage, Sabotage and Subversive Activities on the Alaskan Peninsula Apr 22,1941 SECNAV ltr to FBI Director Hoover Assuming Responsibility for Civilian Investigations of Espionage, Sabotage and Subversive Activities on the Alaskan Peninsula Apr 22,1941