Brazil Pushes for South American Trade Pact
Brazil is pushing hard to form continentwide trade pact by the end of 2003 that would give South American nations greater leverage as United States pursues its own trade accord for hemisphere; collapse of World Trade Organization talks gives effort new momentum; five nations of Andean Community have agreed to conclude free trade talks with Mercosur, southern trade group Brazil dominates; Brazilian Pres Luiz Inacio Lula da Silva, visiting Colombia, discusses pact with Pres Alvaro Uribe, whose nation is most resistant to joining; photo (M)
