I believe that Keyes is relying on our knowledge of slavery as an institution that stole the property of those who earned it (slaves). His concept is not that their descendants be GIVEN money by the government, but that they be allowed to keep all they earn with their toil. They are an exception because as slaves they were never allowed to have property, even though they worked in terrible conditions, were the foundation of a thriving economy and built the South with their sweat and blood.This does not change the fact that people who did not own slaves would be forced to carry the tax burden for people who were never enslaved. An injustice that occurred 150 years ago is somehow corrected with a new injustice with a new set of participants? Oh yes...brilliant!