Its amazing how liberals massage history to try to prove their point. The USA did not start slavery, it ended it. It put in provisions in the constitution to end it. The northern colonies needed the southern colonies at that time to overthrow the oppressive British government which had no Bill of Rights for its citizens. The "well regulated militia", was not the national guard, which was the British army at the time, but the average everyday citizen who could form a well regulated militia to combat an oppressive government, such as the "nanny state " democrat party of today. The Founding Fathers learned from history and their experiences.