Fresh questions are emerging about the way in which UnitedHealth Group times the issue of stock options for executives. The Wall Street Journal reports that lieutenants of CEO Dr. William McGuire appear to have received backdated grants that may have skirted the law. An investigation by the newspaper found evidence that appears to suggest that the "unusual" practice has been standard operating procedure at the company for years. The Journal argues the grants may have led to other accounting irregularities. UnitedHealth shares were off about $1 in morning trading. Article