valid point on only applicable to eligible countries... based on tax treaties well above the Secretary of State office. Although very unlikely circumstance for almost any US tax filer considering the use of Turbotax.
Turbotax does excellent job of showing all eligible countries for Foreign tax credits in the drop down box. Therefore by manner of process, if your concerned that your income is coming from a nation with caustic relationship with the USA, - note your countries of origin from your financial statement, check to see if you could have used that country selection within Turbotax in the dropdown box (which you would use if only a single country source for a particular financial account)...then move on.
The reality is that again this goes back to a IRS audit and a specific question on Form 1116 toward the countries behind the "various". Also every major Financial Institute (think Fidelity, Schwab and TD Ameritrade) won't reflect foreign taxes paid on non-eligible nations. They have shown to me how they have their own tax filters...just case you're carrying a ADR for a stock in Iran or North Korea..
