inwill go to stewart madison, indiana. good morning. caller: good morning, c-span. appreciate you so much. live right here alone the most polluted river in the united states, the ohio river. i am wondering why it is that the social security of the collection ends at $130,000? obviously, it was raised to a $200,000 --ion two always a, if it was raised to a to $200,000, it would be more beneficial. thank you very much, c-span. host: mr. miller? guest: great question. many address the caller's question. social security is designed as a middle-class benefit program, and therefore, it delivers benefits up to a certain level. no one gets rich off social security benefits. on the other side of the coin, it is designed to collect taxes in a similar vein. the cap is adjusted every year using an inflation formula, but what has happened with income inequality and developing income at the high level, and more people earning income that is not ordinary income, but investment income, income from dividends and someone, more and has of the u.s. income base escaped off the top of th