This was a drill and an effort to have black people participate in government. - [william] the organizers who came into alabama had been battle tested in mississippi before, in 1964, they appeared to challenge the entire political power structure of the state of mississippi. - [officer] here you are one one oh six greenwood mobile unit one. here you are one one oh six greenwood base station. - [lillian] we moved the whole national office from atlanta down to greenwood, mississippi the summer of 1964. - [reporter] sncc is conducting classes all over the state, courses on the voter registration ...