Washington Post columnist Robert Samuelson warns that the health care law’s projected net savings are based on unrealistic assumptions – and in any event, America can ill-afford any increase in gross entitlement spending because the federal debt is about to overrun us. Maybe. But nobody was about to take a whack at health care costs (remember “death panels”?) anytime soon if the bill had not passed. And at least the law contains a rudimentary framework for containing costs if Washington ever grows the backbone to make the effort.