Which hurts America worse in terms of credibility as a nation?
Bonehead policies, or empty threats?
Of the two, it's a relative question.
This question is prompted by President Obama's current rhetoric toward Russia regarding Ukraine. "Oh boy, you better not do nothin'" It's just empty rhetoric, and everybody knows it. We aren't going to do squat.
On the other hand, we certainly don't make many friends with many of the policies we do carry out.
Disclaimer: To be fair, Obama is not the only President to have employed empty rhetoric, so it's more of a generic question. This current events are only prompting the question.