The "Easy" Social Security Fix

McArdle pounces:

This is coming up over and over again--an "easy" fix for
Security wherein "all" we have to do is get rid of the cap on
Security payroll taxes, without increasing benefits.  Dylan
has the charts that are currently making the rounds, which show
this [simple:] solution not only eliminates the Social Security
but also generates a substantial surplus!

This is not actuallysurprising, since what this amounts to is hiking the marginal tax rateson...