DALLAS (Standard&Poor's) Jan. 19, 2012--Standard&Poor's Ratings Services assigned its 'AA' long-term rating to Nashville&Davidson County Metropolitan Government (Metro), Tenn.'s series 2012 general obligation (GO) refunding bonds. At the same time, Standard&Poor's affirmed its 'AA' long-term and underlying rating (SPUR) on Metro's GO debt outstanding. Finally, Standard&Poor's affirmed its 'AA-' SPUR on Metro's series 2002 A distribution energy system revenue bonds. The outlook on all ratings is stable. "The rating reflects our view of Metro's role as a regional economic center with a deep and diverse economic and employment base," said Standard&Poor's credit analyst Sarah Smaardyk. "Further supporting the rating is its moderate overall debt levels, coupled with reasonable