"You can't understand who we are as Americans, without understanding that early history." Saturday on "Lectures in History," the first in a series of classes with former Charleston, South Carolina, Mayor Joseph Riley and professor Kerry Taylor. They co-teach a course at The Citadel looking at the creation of the International African American Museum in which is slated to open its doors next year. They're joined for this class by Smithsonian Secretary Lonnie Bunch, who shares his experiences as t