Each year Equal Pay Day highlights the continued disparity in pay between men and women in the United States. In 2011 women who worked full time and year round earned only 77 cents to every dollar earned by men. That wage gap persists and is even more pronounced in the immigrant community: An immigrant woman who has naturalized earns just 75 cents to a naturalized man’s dollar, and undocumented immigrant women from Mexico are even more disadvantaged, earning only 71 cents for every dollar that undocumented men from Mexico earn. There are 5.4 million undocumented women living in America, and...