People demonstrate against Argentine President Cristina Fernandez and in support of farmers at Plaza de Mayo square in Buenos Aires March 28, 2008. Argentine farming leaders called off a 16-day strike against higher taxes on grains exports on Friday and said they would begin talks with the government. The farm protests in Argentina, a global agricultural powerhouse, had frozen grain exports and emptied meat and dairy shelves at stores, presenting Fernandez with her biggest crisis since taking office in December. [Agencies]