I still think congress has to enact and pass this first. I doubt anyone paying into the system is complaining though. Those very wealthy earners out there don't pay into it . But we do.
There is an annual limit called the "contribution and benefit base". For the last three years it was $106,800.00. For 2012, that base will be $110,100.00. This means you are taxed for SS until you hit that income level during your income year, then it is no longer collected as you are maxed-out. It is 6.2% paid by the employee and 6.2% paid by the employer.
The same annual limit also applies when those earnings are used in a benefit computation. I'm not sure that the "very wealthy earners" do not pay into that, to those limits when each year starts. Sure; they don't "need" their money they paid in; but what happens to it if the wealthy just leave it there? Likewise, members of Congress have to pay in to SS too (unless they chose the civil service retirement back in 1984 instead), and need 5 years in service to be fully vested.