United States v. Feola, 420 U.S. 671 (1975), is a United States Supreme Court case in which the court held that conspiracy to assault a federal officer, like the substantive crime of assaulting a federal officer, doesn't require knowledge that the victims were federal officers. Justice Potter Stewart dissented, arguing that the structure of the assault statute and legislative history of its predecessor supported his interpretation that the statute only applied if the defendant knew his victim was a federal officer.