Sanity On Social Security? Ctd

Yglesias thinks it make sense to cut money from Medicare rather than slashing Social security:

What's more, if we're going to cut spending on retirement programs then such cuts should be broadly shared
and not exclusively inflicted on younger people. Such moves are both
fairer and more credible. Last, if you want to cut Social Security
benefits you should just cut Social Security benefits.

But the retirement age has in no way caught up with life expectancy in America. I agree that Medicare is ...