U.S. Pursues Sweeping Insider-Trading Probe - WSJ.com

U.S. Pursues Sweeping Insider-Trading Probe - WSJ.com: "The criminal and civil probes, which authorities say could eclipse the impact on the financial industry of any previous such investigation, are examining whether multiple insider-trading rings reaped illegal profits totaling tens of millions of dollars, the people say. Some charges could be brought before year-end, they say."