It used to be that the plan for getting old comfortably in America had three pillars -- your pension, your savings and Social Security.
Pensions: As Rachel explained last night on the show, pensions are on their way out. They're being replaced by 401k's, in which ordinary workers get tax breaks for gambling their money on Wall Street, to Wall Street's advantage.
Savings: Americans have essentially stopped saving money. With interest rates so low, you can't grow money by leaving it in the bank; the incentive is to gamble it on Wall Street.
Social Security: Republicans continue talking about overhauling Social Security, sometimes as personal investment accounts that mean more gambling on Wall Street, sometimes just as a Ponzi scheme that can't be counted on.