Now Playing: 2-7-13 Marketplace

We look at whether the merger between American and US Airways will really shake up the industry. Microsoft goes after Google in the style of a political attack ad. Fashion journalist Kate Betts discusses Fashion Week trends and the economics behind them. Dan Gorenstein previews Steven Soderbergh's latest film, "Side Effects," a thriller surrounding pharmaceutical pills. Commentator Afi Odelia Scruggs talks about  the emotional impact of finding out her great great grandfather was worth, as a slave, the same amount in modern dollars as her 10-year-old car. And journalist Charlie LeDuff talks about the city of Detroit's slow decline and what it can teach the rest of the country.