tim tebow is taking criticism for showing his faith on the football field. is that fair? we'll ask the man who wrote a book on virtues. former education secretary dr. bill zenet. i'm shannon bream, america's news headquarters live from the capitol states right now. >>> it has been a long time coming. mitt romney made his first sunday show appearance in nearly two years right here on fox with chris wallace. and with just 16 days before the iowa caucuses, several his gop rivals are storming the hawkeye state in search of support. our two hours starts with carl cameron live in des moines, iowa. hello, carl. >> hi, shannon. everybody in des moines is counting down the hours and days to the first caucuses. 16 days to the leadoff contest. mitt romney and newt gingrich have been in a battle really for five weeks. ever since newt gingrich soared to the top of the polls and stayed there, unlike so many other candidates early on in this campaign. the romney campaign has recognized that newt gingrich is a threat that's real here in iowa and across the country and romney today went at newt in the interview with chris wallace. in essence, mr. romney gave an elongate