We need to wave the flags of our heritage proudly...even if you aren't a Civil War Reenactor! I also, of course, fly our 'Star Spangled Banner', our glorious and beautiful Stars and Stripes, on a daily basis. A lesson learned clearly from the Civil War was that men on both sides of the conflict were patriots...not fighting some attacking foe from foreign soil, but indeed repelling or supressing (whatever the perspective may have been!) other similar men - Americans - who were willing to make the ultimate sacrifice regarding their beliefs of government. Here is a great quote that sums up the idea nicely from General John Gordon, CSA.
"...It will be a glorious day for our country when all the children within its borders shall learn that the four years of fratricidal war between the North and the South was waged by neither with criminal or unworthy intent, but by both to protect what they conceived to be threatened rights and imperiled liberty:
That the issues which divided the sections were born when the Republic was born, and were forever buried in a ocean of fraternal blood."