Talks from the June 2012 Civil War Institute conference have recently been featured on C-SPAN 3.
From C-SPAN:
The Civil War: Images of the Dead at Antietam
Harvard University history professor and author Megan Kate Nelson talks about the battlefield photography and illustrations made in the wake of the Battle of Antietam in September of 1862. Many of the images feature dead soldiers, and Ms. Nelson discusses the impact of those images both during the war and today. This talk is from the 2012 Civil War Institute Conference at Gettysburg College. It contains graphic content and images.