Arnold Kling admits that raising the Medicare eligibility age won't save much money. Peter Suderman agrees but says we should do it anyway:
There's … a political argument for raising the eligibility age: It could help make it easier to truly transform the program. One of the reasons that Medicare is so difficult to reform, despite its well-known broken finances, is the size, commitment, and influence of the coalition of beneficiaries. As Kling argues, "reducing the proportion of the population on Medicare would help to lower the political rigidity that surrounds it." Raising the program's eligibility age, then, is a reform that could pave the way for bigger, better reforms—and help demonstrate that structural changes to the program wouldn't be painful as some people seem to think.
The Dish 