Denying the role, and thereby cheapening the memory, of the Confederacy's slaves and freemen who fought in a failed war of independence is part of the agenda to cover up Abraham Lincoln's unconstitutional acts to prevent Southern secession. Did states have a right to secede? At the 1787 Constitutional Convention, James Madison rejected a proposal that would allow the federal government to suppress a seceding state. He said, "A Union of the States containing such an ingredient seemed to provide for its own destruction. The use of force against a State would look more like a declaration of war than an infliction of punishment and would probably be considered by the party attacked as a dissolution of all previous compacts by which it might be bound."

Walter E. Williams

http://townhall.com/columnists/WalterEWilliams/2010/11/03/virginias_black_confederates/page/full/