“I am fairly certain that none of my ancestors owned and slaves”
Barack Obama’s ancestors on his mother’s side did.
B.O.’s father’s ancestral family/tribe was one of the big players in capturing and selling slaves, so he has both slave owner ancestors as well as slave catcher/seller ancestors. He should owe his primary supporters a special apology for his part in slavery. My ancestors who were here during that period on the other hand fought against slavery so he also owes us an apology (and reparations) for the blood and money spent to free the slaves his ancestors caught/sold/held.