The U.S. Supreme Court recently heard arguments about a California-based utility company’s 401(k) plan and whether the employer failed to act in the best interest of its plan participants. The employer chose a pricier investment fund for its participants instead of almost identical fund options that charged lower fees. According to CNN Money, “Studies have shown that even a small difference in 401(k) investment fees can result in the difference of tens of thousands of dollars of savings.” As a result, the plan participants sued the employer. For more, read the full story.