A man grooms a horse in the empty stables of the live cattle market in Buenos Aires, Tuesday, March 25, 2008. Highway blockades by farmers protesting new tax hikes on soybeans and other grains, have interrupted transportation and slowed the supply of cattle to market. The strike by farmers, now in its 13th day, began after Argentina's government announced increases in export taxes. (AP Photo/Natacha Pisarenko)

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