In 2005, President George W. Bush tried to advance a plan to privatize Social Security. Back then, the stock market was booming and house prices bubbling, so he and friends used the pitch that workers would have gotten better returns had they put the money in stocks rather than the conservatively financed program. Bush reassured the public he would not let Americans move their retirement savings into risky investments.

About three years later, the bottom fell out of the stock market. Prices cratered for even the finest blue-chip stocks. Imagine the taxpayer bailout that an enraged public, having seen its government-blessed stock portfolios shot to bits, would have demanded.

It's true that the accounting for Social Security has been a bit scuzzy. That has given some conservatives an opening to argue that they don't have to pay these benefits because, oops, the money is gone. This con centered on the claim that the securities in the Social Security Trust Fund were worthless pieces of paper — or, in the words of Bush, "just IOUs."

But in 2001, then-Federal Reserve Chairman Alan Greenspan was asked whether the trust fund investments were real or not. He responded, "The crucial question: Are they ultimate claims on real resources? And the answer is yes."

Actually, the investments held by the trust fund are, like other Treasury securities, basically loans made to the government. Had the Treasury not been able to get this money from Social Security, it would have had to borrow more from the public by issuing additional debt.

To go full circle, Republicans are again arguing that payment of the debt is negotiable. And to spice it up, they're adding some boomer bashing.

Conservative pundit Ben Shapiro recently tore into a defender of his Social Security benefits by tweeting his (Shapiro's) kids will be paying for them. "You'll get way more than you paid in," he went on, which is why "it's not fiscally viable."

One hopes Shapiro will familiarize himself with how Social Security actually works. (It's not a passbook savings account.) More confounding, though, was his complaint that Social Security is "effectively a defined benefits plan."

What's wrong with a defined benefits plan? It's a retirement plan in which workers know what they will receive in return for their contributions.

Never mind. Americans have so far resisted getting cheated out of the benefits they and their employers have paid for with real money.

Social Security on the cutting block? Why?

Follow Froma Harrop on Twitter @FromaHarrop. She can be reached at fharrop@gmail.com. To find out more about Froma Harrop and read features by other Creators writers and cartoonists, visit the Creators webpage at www.creators.com.