The National Conference of (Catholic) Bishops in Brazil endorsed MST's goals and worked together with MST on the September, 2002, referendum to reject the Latin American Free Trade Agreement
. The MST has received numerous international awards for its humanitarian work, been the subject of a two-hour report on the BBC, had dozens of doctoral dissertations written about it and is a leader in Via Campesino, the most significant international organization of farmers and rural workers.
Prior agreements such as Mercosur, ALADI, Latin American Free Trade Agreement
(LAFTA), and others further complicate any extended NAFTA arrangement, because of the meshing difficulties of two different sets of trade disciplines.