WARSAW, Va. - Crystal Foster's father advised her to spend the $500,000 income tax refund she got two years ago. When the government came looking for its money, the Fosters said it was their rightful reparations, since their ancestors were slaves. Though there is no federal reparations program, Foster had spent the money in eight days, buying a $40,000 Mercedes Benz, paying off her student loans and helping her brother pay for his first year at Virginia Tech. Foster's father, Robert Lee Foster, prepared her tax forms and was convicted along with his daughter of trying to defraud the government....