Good stuff on means testing from Charles Blahous over at e21:
As it happens, the two largest and fastest-growing areas of federal spending, Social Security and Medicare, are both ones for which the wealthiest Americans are fully eligible for rising benefits. Both programs are, to be sure, of extreme political sensitivity. But the financial imbalances in these two programs require correction by elected officials in any event. To the extent that spending on the wealthy is constrained within these programs, it will reduce the financial pressure for even more politically-sensitive changes to them.