FILE – In this May 1, 2006 file photo, demonstrators walking under a giant American flag during a march through downtown Chicago to show support for immigrant rights. Hundreds of thousands of mostly Hispanic immigrants participated in the rally. Figures released by the U.S Census Bureau Tuesday, Feb. 15, 2011, show that while Illinois’ populations of both whites and blacks decreased, the population of people who identified themselves as Hispanic grew at a sharp 32.5 percent rate. (AP Photo/M. Spencer Green, File)