Via WSJ.com

The 401(k) retirement plan, one of the most important savings tools available to Americans, is about to get a makeover.Some of the new features that would be part of the new plan from 2008 are Automatic enrollment, Automatic increase by employers, investments in higher yielding investments.
Why is it being changed?
The problem is, too many people are making bad decisions, such as
leaving their money parked in low-yielding investments instead of more
suitable choices.