MONEY MATTERS Reparations? How Much Can We Afford? Reparations are all the rage again. A lot of people reckon we taxpayers should shell out reparations. To descendants of American slaves. And to Native Americans. (Some of our candidates for the White House call for these reparations.) This presents a few problems. Problem: The average African-American has from 20 to 30 percent white blood. Native Americans on average have lots of white blood. So, should we pay less blood money to…