Editorial Note: This article is written with editorial review and topic relevance in mind.
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. Fbi searches two homes belonging to iu luddy professor and library analyst
FBI Investigating Killing of Capitol Police Officer Brian Sicknick
