Fbi Informant Infiltrated Ku Klux Klan Stopped Lynching Black Man Former Florida Prison Guards In Plotted To Kill A
美国联邦调查局（fbi）： 隶属于美国司法部，全称为federal bureau of investigation。fbi不仅代表联邦调查局的缩写，还代表.
Atlanta lynching Police officer, Klan leader Samuel Roper orchestrated
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