When I was young, I was very interested in the American Civil War.  In fact, after reading “The Killer Angels” in school and later seeing its film version, “Gettysburg,” my family took a vacation in which we visited several of the battlefields, including Bull Run, Antietam, and Gettysburg.  So, when I realized Netflix was showing Ken Burns’ “The Civil War” a few weeks ago, we started watching it. Our trip to the battlefield in Franklin, TN over Memorial Day weekend helped create even more interest, and I’ve been…