Is there, or should there ever be, a point when a state is no longer penalized for its discriminatory past? Not according to the Department of Justice, which last Friday rejected a South Carolina law that would have required voters show a valid photo ID before casting their ballots.

Justice says the law discriminates against minorities. The Obama administration said, “South Carolina’s law didn’t meet the burden under the 1965 Voting Rights Act, which outlawed discriminatory practices preventing blacks from voting.”