Ah, the Bush plan.
Take some of the funds from the payroll tax and create a new, forced, savings system.
Of course, that reduces the revenues available to fund the current system which people have been paying into all their lives.
So, eventually and reluctantly Bush admits there'd have to be some sort of means testing to reduce the burden, that's actually the only part of the plan that had anything to do with saving social security, the private accounts were just a new government program, and a particularly odious one at that.
Problem with a forced savings program is that it distorts the marketplace, creates unnatural demand for investment vehicles, and assuming your plan follows the Bush pattern of limiting investment choices to those approved by a federal employee, gives the government yet another tool with which to move markets, and therefore to line their pockets.
That and the FORCED part.
If we really want to save SS I think we've got two options. The first is to make it a paygo safety net with a limited budget targeted only at the most needy people who've paid in, in other words means test it until it's solvent.
The other solution would be to monetize the IOUs in the trust fund, remove the cap on the payroll tax, stop borrowing money from the fund for general spending, and take the proceeds and buy up assets which generate revenue owned by the trust for the benefit of seasoned citizens and the disabled, utilities, rail, energy, public/private partnerships to build bridges, dams, etc.
Trying to kill it completely isn't going to work, everybody's got a grandma and everyone's been paying in.
Fact is though we've spent all the surplus money paid in on the welfare/warfare state, and we the people allowed it to happen.
I REALLY dislike the regressive nature of the payroll tax as it exists today, no reason at all for it to be limited to the first $100K or so of income, should be a flat tax on all income. It's a safety net, not a retirement plan.