In those days few people even within the Government knew of the Bureau of Investigation. and of those who did some managed to confuse it with the Treasury Departments Secret Service. Attorney General T. W. Gregory assijned the new clerk to the recently formed War Division of the Department. After the United States entered the First World War. the War Division worked with Army and Navy intelligence agencies in preparing evidence leading to the deportation of suspected and avowed anarchists. In a short time. Hoover knew more about handling the investigative side of cases of this kind than anyone else in the Department.
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deportation