"If it doesn't fit, you must acquit." Wall Street's defence against regulatory efforts to ban some of its trading practices is reminiscent of Johnnie Cochran's famous rhyme about ill-fitting gloves in the OJ Simpson trial. (Simpson was found not guilty of the murders of his ex-wife and one of her friends).

Wall Street's defence against regulatory efforts to ban some of its trading practices is reminiscent of Johnnie Cochran's famous rhyme about ill-fitting gloves in the OJ Simpson trial. (Simpson was found not guilty of the murders of his ex-wife and one of her friends).