I don't think you should EVER be embarrassed to be from your own country. You can be embarrassed by what some of your countrymen do - appauled by what some of your leaders and officials do when the "represent" you to the world - but don't ever be embarrassed about where you come from.
You don't think Americans are ever embarrassed by what OUR countrymen do when the cameras are on them? Maybe you haven't watched the weather channel during tornado season - or haven't caught a monster truck rally on the Speed Channel - but we DO have our moments too.
Tell you what...just watch CNN this week - no matter how you feel about the war on Iraq, our dirty laundry is there for all to see...