The Federal Bureau of Investigation seal is displayed outside the FBI headquarters, Feb. 2, 2018, in Washington. The Federal Bureau of Investigation seal is displayed outside the FBI headquarters, Feb. 2, 2018, in Washington. The Federal Bureau of Investigation seal is displayed outside the FBI headquarters, Feb. 2, 2018, in Washington. The Federal Bureau of Investigation seal is displayed outside the FBI headquarters, Feb. 2, 2018, in Washington. A Michigan suspect who authorities say expressed explicit neo-Nazi and antisemitic ideologies online was arrested Friday by the FBI who alleged he stockpiled weapons and was planning a mass shooting. The United...