Money talksWhy are we not surprised by the story that appeared last week on Bloomberg pointing out that Chicago's futures exchanges were giving more money to members of Congress than ever before? Citing data from an independent campaign-finance website, politicalmoneyline.com, the story said Chicago Mercantile Exchange had donated some $327,000 to candidates through its political action committee (PAC) by end of September, 79% more than it had given by the same point in any other two-year period ending with congressional elections. Chicago Board of Trade, meanwhile, gave...