you re watching cbs 5 eyewitness news in high definition. defending the downgrade, the argument over the country s credit rating and why s and p is sticking with its decision. a war zone tragedy, a u.s. helicopter is shot down, taking 30 american lives. how one military leader wants to honor their loss. people need to p safe and the police are there to enforce the laws. protecting pedestrians in a hit-and-run tragedy. what police are doing to make the streets safer. good evening. fuzzy math or congressional bungling. the downgrade has plenty of people pointing fingers tonight. jay dow on the decision that could cost all americans in the form of higher interest rates. standing by its decision to downgrade the u.s. credit rating. america went from a aaa to a aa plus rating, which means s and p considers the u.s. a riskier investment. last week the agency warned it was watching the economy and decided to issue the downgrade on the heels surrounding of the debt ceiling.