US President Barack Obama shakes hands with people after speaking on immigration at the Chamizal National Memorial on May 10, 2011 in El Paso, Texas. Obama has recently revived his goal of achieving comprehensive immigration reform, opening a path to legalization for the estimated 11 million foreign nationals living in the country illegally, most of them Hispanics. AFP PHOTO/Jewel Samad (Photo credit should read JEWEL SAMAD/AFP/Getty Images)