By Joel Jacobsen / Syndicated Columnist   The 1960 advertisement that appeared in The New York Times and ultimately led to the landmark New York Times Co. v. Sullivan case. (Courtesy of Alabama Department of Archives and History) On Feb. 25, 1960, more than two dozen students of Alabama State College (formerly Alabama State College for Negroes) went into downtown Montgomery for lunch. Their chosen spot was the county courthouse's cafeteria. As soon as they arrived, according to the Alabama Heritage website, "the white snack bar owner acted quickly to halt the protest, closing the lunchroom, turning off lights, and...