It's been more than 150 years, and people are still debating the question.

We'll talk to Donnie Kennedy, co-author of "The South was Right!" who thinks that much more than slavery was at issue.

We'll also talk to James Loewen, who quotes the explanations provided by seceding states themselves in his book, "The Confederate and Neo-Confederate Reader: The 'Great Truth' About the 'Lost Cause.'"

So saddle up and join us.