First up, we talk about the challenge of proving that a trader is out to manipulate a financial market. We talk to Joel Hasbrouck, a financial industry consultant and Professor of Business Administration and Professor of Finance at the NYU Stern School of Business, for more. Plus, search giant Google could launch its new wireless service as early as today. The Wall Street Journal reports a key feature is customers paying only for the data they use instead of buying data in bulk, whether they use it or not. And a California appeals court has ruled that one city’s special system of charging for water—the more you use, the higher the price—is invalid. Pricing water is tough, even in places not beset by drought.