Busy day for the harbingers of change around the world. U.S. Draft Law Would Ban Most Trading in Credit Swaps http://www.bloomberg.com/apps/news?pid=newsarchive&sid=aQwtZAoNG4GY CME Group's trading volumes could hinge on government rescue efforts http://www.chicagotribune.com/business/chi-thu-cme-jan29,0,6113225.story U.K. Financial Regulator Calls for World Watchdog http://online.wsj.com/article/SB123318291119226187.html S.Korea puts exchange operator under state control http://www.reuters.com/article/rbssFinancialServicesAndRealEstateNews/idUSSEO18488220090129