Illegal workers aid solvency of Social Security By Eduardo Porter NEW YORK TIMES NEWS SERVICE April 5, 2005 STOCKTON – Since illegally crossing the U.S.-Mexico border into the United States six years ago, Angel Martinez has done backbreaking work, harvesting asparagus, pruning grapevines and picking the ripe fruit. More recently, Martinez also has washed trucks, often working as much as 70 hours a week, earning $8.50 to $12.75 an hour. Advertisement Not surprisingly, Martinez, 28, has not given much thought to Social Security's long-term financial problems. But Martinez – who comes from the state of Oaxaca in southern Mexico and...