You mean perhaps it'd be more credible if it were a company owned by the Hungarians or Greeks, Italians, Spanish, Portuguese, Irish etc. etc. etc?
Anyway, just in case you're suggesting some form of undue national and/or political bias (as opposed to pure ineptitude) that same US agency quite recently downgraded its ratings for the US from AAA to AA+
http://www.guardian.co.uk/world/rich...ebt?CMP=twt_gu
http://en.wikipedia.org/wiki/Standard_%26_Poor's