We have promised more than we expect to take in: Looking indefinitely into the future, Social Security has a $28.5 trillion unfunded liability, according to the latest Trustees report. When combined with Medicare, the unfunded liability is $72 trillion– more than four times the size of our entire economy.

All of our elderly entitlement programs have a negative cash flow which will only get worse through time.

Elderly entitlements are crowding out every other type of spending: Currently, we are using about one in every seven general revenue dollars to cover these deficits. By 2020, we will need more than one in five. By 2030, we will need about one in three.

The average 60-year-old couple can expect Social Security benefits worth $1.2 million. With Medicare included, the average retiree is an "entitlement millionaire."  However, that requires collecting from future taxpayers at rates that will be from two to three times their current level by mid-century.

Singapore, with its forced saving program, has the most successful social security system in the world: one in six households there is a millionaire household. And that's real wealth – not wealth based on a promise to collect future taxes.

Compared to most private pensions, Social Security is incredibly complicated. Americans are losing $10.6 billion a year by failing to make the right choices in claiming benefits.

Toward the end of the last century, more than 30 countries fully or partially privatized their social security programs. Recently, however, numerous countries have seized private pension funds, including individual private accounts. At least 11 countries have halted or reversed their social security privatization efforts.