Not to be overly critical... but I think you need to look up just what "insurance" does. Insurance IS the guarantee. They are synonymous
puhlease, I'm well aware of the function of insurance. While SS is named as such and in it's original inception it did indeed act as insurance in case you couldn't take care of yourself, as evidenced by McCain recieving SS payments, IT'S NO LONGER AN INSURANCE PROGRAM
But to the delight of the internets, I will admit to being wrong.
IT'S INSURANCE!!
there! I'm done
LOL