Owning a 401(k) plan is a good idea—unless you worked for WorldCom. Much of its stock has been declared worthless. There's a lawsuit in progress that's trying to recoup some money for employees.
At the litigation website, I found a number to call for more information. My hopes for a speedy resolution were dashed, however, when after dialing, I heard, "700 Club Prayer Line. How may I help you?"