mark alboin on nasa's james hansen. lawrence solomon on the scientists who have different views of climate change. and more on how to cool the planet. that is tonight on c-span2. >> join our conversation on the american revolution, the making of the constitution, and the importance of historical study. it live for three hours with your calls, e-mail, and tweets. >> the financial crisis inquiry commission continued its investigation into the 2008 financial crisis. this hearing looked at how regulators determined financial firms that were considered too big to fail. among the witnesses, the ceo of wachovia, a financial firm deemed too big to fail. >> this is a meeting of the financial crisis inquiry commission. we're looking at the impact of extraordinary government intervention in the financial crisis. good morning. i am honored to welcome you as we open the last in a yearlong series of hearings in washington and new york, examining the financial and economic crisis that has gripped our nation. sadly, while the facts of the crisis may be