Argentine demonstrators sit as they take cover from tear gas during
clashes near the Casa Rosada government house, December 20, 2001.
Thousands gathered at the Plaza de Mayo square to demand the
resignation of President Fernando de la Rua, whose government is
struggling to save the country's economy from nearly four years of
recession, 18.3 percent unemployment and the biggest sovereign debt
default ever. De la Rua declared a state of siege to quell the nation's
worst civil unrest in a decade after looting and riots have left 16
people dead and hundreds injured. REUTERS/Marcos Haupa

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