7 U.S.C. § 601 : US Code - Section 601: Declaration of conditions

      It is declared that the disruption of the orderly exchange of
    commodities in interstate commerce impairs the purchasing power of
    farmers and destroys the value of agricultural assets which support
    the national credit structure and that these conditions affect
    transactions in agricultural commodities with a national public
    interest, and burden and obstruct the normal channels of interstate
    commerce.