the city of detroit may not have to sell a monet for money after all. a possible sale of detroit's city owned art collection which includes renoir, van go, could help close the city's massive gap. a preliminary estimate values the art in the area of $$fo62 t $850 million. christy's will list several ways the art could be used to help the city pay its bills without actually selling it. >> on tuesday, a federal judge ruled the city of detroit is eligible for the largest municipal bankruptcy in history. this could affect the pensions of thousands of former public serviceants, including a retired firefighter. dr. sanjay gupta has his story