From my former Cato colleague, Will Wilkinson:
The trick to weaving an effective and politically-robust safety net for those who most need one is designing it to appear to benefit everyone, especially those who don't need it. The whole thing turns on maintaining the illusion that payroll taxes are "premiums" or "insurance contributions" and that subsequent transfers from the government are "benefits" one has paid for through a lifetime of payroll deductions. The insurance schema protects the main redistributive work of the programme by obscuring it. As a matter of legal fact, payroll taxes are just taxes; they create no legal entitlement to benefits. The government can and does spend your Social Security and Medicare taxes on killer drones. But the architects of America's big social-insurance schemes, such as Frances Perkins and Wilbur Cohen, thought it very important that it doesn't look that way. That's why you you see specific deductions for Social Security and Medicare on your paycheck. And that's why the government maintains these shell "trust funds" where you are meant to believe your "insurance contributions" are kept.
Alas, like Social Security and Medicare themselves, the deceptions that protect these entitlement programs cannot go on forever.
Generally, liberals are profoundly conservative about the classic Perkins-Cohen architecture of America's big entitlement programmes, which they credit for their remarkable popularity and stability. Yet that architecture offers very few degrees of freedom for significant reform. Crunch time is coming, though, and sooner or later something's got to give.
If Wilkinson's overlords at The Economist demand that he misspell program, they should be consistent and allow him to abandon the American convention of mislabeling leftists as liberals.