Retirement Crisis: The Great 401(k) Experiment Has Failed for Many Americans

Kelley Holland for CNBC -You need to know this number: $18,433. That's the median amount in a 401(k) savings account, according to a recent report by the Employee Benefit Research Institute. Almost 40 percent of employees have less than $10,000, even as the proportion of companies offering alternatives like defined benefit pensions continues to drop.

Older workers do tend to have more savings. At Vanguard, for example, the median for savers aged 55 to 64 in 2013 was $76,381. But even at that level, millions of workers nearing retirement are on track to leave the workforce with savings that do not even approach what they will need for health care, let alone daily living. Not surprisingly, retirement is now Americans' top financial worry, according to a recent Gallup poll.  Click Here to read more.