FILE - In this April 12, 1963 file photo, Rev. Ralph Abernathy, left, and Rev. Martin Luther King Jr. lead a column of demonstrators as they attempt to march on Birmingham, Ala., city hall, however, police intercepted the group short of their goal. The epicenter of the fight over the nation's patchwork of immigration laws is not Arizona, which shares a border with Mexico and became a common site for boycotts. The case that's likely to be the first sorted out by the U.S. Supreme Court comes from the Deep South state of Alabama, where the nation's strictest immigration law has resurrected ugly images from Alabama's days as the nation's battleground for civil rights a half-century ago. And Alabama's jump to the forefront says as much about the country's evolving demographics as it does the nation's collective memory of the state's sometimes violent path to desegregation. (AP Photo/Horace Cort, File)