(CNN) -- I carry in my mind a picture of the Rev. Martin Luther King Jr. at the beginning of the Selma to Montgomery voting rights march on March 21, 1965. What makes that picture so vivid to me 48 years later, as we prepare to celebrate his 84th birthday this month, is that voting rights issues I once imagined were over have resurfaced on a national scale. The biggest difference between then and now is that today's voter suppression operations are highly sophisticated, compared with the crude, racist ones conducted by Southern sheriffs and voter registrars through the middle 1960s.Nicolaus Mills remembers MLK's march from Selma to Montgomery for voting rightsKing was fighting for voting rights, he says, 48 years later, voting issues are re-emergingMills: Today's voter suppression is subtle compared with the past's crude, racist attemptsMills: As we honor MLK, we should fight voter ID laws and attempts to erode voting rights
He could only hope the _ march changed more minds than were in the rows of us walking behind him.