included in the total amount of unrecognized tax benefits of $ 148.8 as of december 31 , 2008 , is $ 131.8 of tax benefits that , if recognized , would impact the effective tax rate and $ 17.1 of tax benefits that , if recognized , would result in adjustments to other tax accounts , primarily deferred taxes . the total amount of accrued interest and penalties as of december 31 , 2008 and 2007 is $ 33.5 and $ 33.6 , of which $ 0.7 and $ 9