Les leaders des droits civiques le disent: pour comprendre le président, il faut avoir conscience du passé
A police officer takes a photo after thousands of people made a symbolic walk across the Edmund Pettus Bridge, Sunday, March 8, 2015, in Selma, Ala. This weekend marks the 50th anniversary of “Bloody Sunday,’ a civil rights march in which protestors were beaten, trampled and tear-gassed by police at the Edmund Pettus Bridge, in Selma. (AP Photo/Bill Frakes)