November 3, 2008: The market turmoil of recent weeks has been brutal to 401(k)s. But beyond highlighting the woeful inadequacy of many Americans' retirement savings, the meltdown puts a spotlight on some longstanding pitfalls of 401(k)s themselves -- and makes it even more urgent that investors guard against them.

This year through Oct. 30, the average 401(k) account balance dropped roughly 18% to 23%, depending on the participant's age and tenure with the plan, according to Employee Benefit Research Institute.

Click here to read more at the Wall Street Journal.