QUOTE
"American political spokesmen seem to just assume that the USA has a God-given right to attack any country it wishes to any time it wishes to"

Utter rubbish specific hypothetical answers to a specific hypothetical questions do not reflect official government policy, nor have they ever done so.
UNQUOTE

But the practicalities of the the USA (read CIA) having stuck its dick in almost every country around the world for the last 100 years gives the lie to your claim Teribus.