Domingo sangriento, 50 años después

TOPSHOTS Letasha Irby, a worker who still sees challenges and inequality in the present day US, poses for a portrait on March 5, 2015 in Selma, Alabama. Saturday will mark the 50th anniversary of Bloody Sunday where civil rights marchers attempting to walk to the Alabama capitol in Montgomery for voters' rights clashed with police on the Edmund Pettus Bridge. AFP PHOTO/ BRENDAN SMIALOWSKI

SELMA, AL - MARCH 06: Visitors pose for a photo in front of the Selma city limits sign on March 6, 2015 in Selma, Alabama. Selma is preparing to commemorate the 50th anniversary of the famed civil rights march from Selma to Montgomery that resulted in a violent confrontation with Selma police and State Troopers on the Edmund Pettus Bridge on March 7, 1965. Justin Sullivan/Getty Images/AFP == FOR NEWSPAPERS, INTERNET, TELCOS & TELEVISION USE ONLY ==

SELMA, AL - MARCH 06: A row of run down homes on March 6, 2015 in Selma, Alabama. 50 years after the historic civil rights march from Selma to Montgomery where marchers were beaten by State police officers as they crossed the Edmund Pettus Bridge, Selma struggles economically and is one of the poorest cities in Alabama with a 10.2 percent unemployment rate and over 40 percent of residents living below the national poverty level. Justin Sullivan/Getty Images/AFP == FOR NEWSPAPERS, INTERNET, TELCOS & TELEVISION USE ONLY ==

SELMA, AL - MARCH 06: School kids walk by a vacant home that is along the historic route that civil rights marchers took during the Selma to Montgomery march on March 6, 2015 in Selma, Alabama. 50 years after the historic civil rights march from Selma to Montgomery where marchers were beaten by State police officers as they crossed the Edmund Pettus Bridge, Selma struggles economically and is one of the poorest cities in Alabama with a 10.2 percent unemployment rate and over 40 percent of residents living below the national poverty level. Justin Sullivan/Getty Images/AFP == FOR NEWSPAPERS, INTERNET, TELCOS & TELEVISION USE ONLY ==

. Selma (United States), 06/03/2015.- Eugene Crawford-Goodwin stands near the Edmund Pettus Bridge as people prepare to commemorate the 50th anniversary of the Bloody Sunday crossing in Selma, Alabama, USA, 06 March 2015. Crawford-Goodwin crossed the brigde back in 1965 when he was 17-years-old. On 07 March 1965, an estimated 525 to 600 civil rights marchers headed east out of Selma before they were confronted by state police at Edmund Pettus Bridge, who beat the protests with sticks and fired tear gas to try to disperse the crowd. The weekend of civil rights activities also honors the Selma-to-Montgomery March and the Voting Rights Act of 1965. (Protestas, Estados Unidos) EFE/EPA/DAN ANDERSON