Article Photos: Immigration debate gives life to annual rallies 25/36

Troy Flores wears a costume during a May Day demonstration in San Francisco, Wednesday,  May 1, 2013. Demonstrators demanded an overhaul of immigration laws Wednesday in an annual, nationwide ritual that carried a special sense of urgency as Congress considers sweeping legislation that would bring many of the estimated 11 million people living in the U.S. illegally out of the shadows. (AP Photo/Marcio Jose Sanchez)