[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2009/images/03/16/minding_your_busi_art.jpg caption=" CNN Business Correspondent Christine Romans is Minding Your Business everyday here on amFIX"] President Barack Obama was poised, confident, even laughing at times during his 60 Minutes interview Sunday night. He expressed confidence in his Treasury Secretary, and even had cautious optimism for the economy. Mortgage rates are historically low, credit-worthy … Continue reading The president's cautious optimism