The major movie and music companies and their lobbyists in Washington have a long history of laundering controversial or unpopular copyright policies that they can’t get through Congress through trade agreements or international treaties instead. In the case of the revised U.S.-Canada-Mexico free trade agreement (NAFTA 2.0) now awaiting congressional approval, however, the movie and music companies have suddenly reversed tactics and are trying to get copyright-related language removed from the agreement.
Source: Trading places