Masked protesters from a left-wing picket movement block the traffic as they march to Plaza de Mayo in Buenos Aires to repudiate U.S.Treasury Secretary Paul O' Neill's visit to Argentina, August 7, 2002. O'Neill arrived for a 30-hour official visit to Argentina whose government is desperately trying to squeeze financial help out of the International Monetary Fund in which the United States is the largest shareholder and therefore an influential controller of the purse strings. REUTERS/Enrique Marcarian

Unemployed people gets some food from an impromptu soup kitchen as they march toward Buenos Aires Plaza de Mayo, Wednesday, Aug. 7, 2002 to protest against the visit of U.S Treasury Secretary Paul O'Neill to Argentina. (AP Photo/Daniel Luna)

Bank employees shouting anti-IMF slogans march in the financial district of Buenos Aires to protest against U.S.Treasury Secretary Paul O' Neill's visit to Argentina, August 7, 2002. O'Neill arrived for a 30-hour official visit to Argentina whose government is desperately trying to squeeze financial help out of the International Monetary Fund in which the United States is the largest shareholder and therefore an influential controller of the purse strings. REUTERS/Enrique Marcarian REUTERS

The first car in U.S Treasury Secretary Paul O'Neill's departing motorcade is pelted with tossed eggs by demonstrators as he leaves the Economy Ministry building in Buenos Aires, Wednesday, Aug. 7, 2002 following a meeting with Argentina's Economy Minister Roberto Lavagna. (AP Photo/Daniel Luna)