this is nbc nightly news. the u.s. economy is once again in the crosshairs. a downgrade of america s debt by a ratings agency. standard and poors could well impact stock markets around the world tonight and our own tomorrow morning. politicians meantime are debating how the downgrade may affect your pocketbook and whether the u.s. truly deserved it. we have complete coverage tonight. cnbc s washington s john harwood starts us out. reporter: obama administration s officials remain furious about s&p s decision to downgrade debt. but they also have to worry about minimizing its effects. hoping to calm markets, treasury secretary, timothy geithner ended uncertainty about his future, wi announcing he ll remain on job rather than return to new york. in an exclusive interview, git anywhere said u.s. treasuries remain safe and sought to reassure americans worried about interest rates on mortgages and auto loans, while blasting s&p s decision. i think s&p has shown really terr
this is nbc nightly news. th u.s. economy is once again in the crosshairs. a downgrade of america s debt by a ratings agency. standard and poors could well impact stock markets around the world tonight and our own tomorrow morning. politicians meantime are debating how the downgrade may affect your pocketbook and whether the u.s. truly deserved it. we have complete coverage tonight. cnbc s washington s john harwood starts us out. reporter: obama administration s officials remain furious about s&p s decision to downgrade debt. but they also have to worry about minimizing its effects. hoping to calm markets, treasury secretary, timothy geithner ended uncertainty about his future, wi announcing he ll remain on job rather than return to new york. in an exclusive interview, git anywhere said u.s. treasuries remain safe and sought to reassure americans worried about interest rates on mortgages and auto loans, while blasting s&p s decision. i think s&p has shown really terri