Judge throws out CFTC's position limits rule

``Wilkins ruled that, by law, the CFTC was required to prove that the position limits in commodity markets are necessary to diminish or prevent excessive speculation. He also ruled that the amendments to the 2010 Dodd-Frank financial oversight law "do not constitute a clear and unambiguous mandate to set position limits, as the commission argues."'' -- Well, there's your license to manipulate silver for another year, JP Morgan...