Do U.S. lawmakers know that (facilitating crime should be legal)? http://en.wikipedia.org/wiki/Accessory_(legal_term)
In some jurisdictions, criminal "facilitation" laws do not require that the primary crime be actually committed as a prerequisite for criminal liability. These include state statutes making it a crime to "provide" a person with "means or opportunity" to commit a crime, "believing it probable that he is rendering aid to a person who intends to commit a crime." [...]
The U.S. criminal code makes aiding and abetting a federal crime itself a crime [...]
The elements of aiding and abetting are, generally:
(1) guilty knowledge on the part of the accused ( the mens rea);