The Group of Twenty Finance Ministers and Central Bank Governors, or G20, is meeting in Pittsburg today. Their aim is to reform global financial markets, ease the current crisis and prevent market meltdowns in the future. With broad public agreement that markets must be better regulated - will this conference bring transparency and enhanced oversight to the world's financial centers ? The next few days will answer that question, as world leaders gather in a city that itself overcame its own crisis - that in the American steel industry - by redefining itself.