1. Not enough people even have a 401(k) plan. Fifty-three percent of the population isn't covered. Since fewer than 10 percent of the population has a regular pension, a huge chunk of Americans depend solely on Social Security, whose typical benefit is $12,000 to $20,000 a year.

2. Even those people with 401(k) plans can't retire because employers don't contribute enough. The meager three percent contribution rate is the lowest in the advanced world. Australia's contribution rate is equal to nine percent of pay. Denmark's is 11.8 percent, Hungary's is 8 percent, Mexico's is 6.5 percent, Poland's is 7.3 percent and the Slovak Republic's is 9 percent.