“The canon against superfluity is not a canon against verbosity.When a thought could have been expressed more concisely, one does not always have to cast about for someadditional meaning to the word or phrase that could havebeen dispensed with. This has always been understood. A [British] House of Lords opinion holds, for example, that in the phrase “ ‘in addition to and not in derogation of ’ ” the last part adds nothing but emphasis. Davies v. Powell Duffryn Associated Collieries, Ltd.,  A. C. 601, 607.”
There must be no use of foreign law by US courts in interpreting our Constitution and laws, nor should foreign sources of law be used in State courts; adjudication of criminal or civil matters.