Why do people in other countries think they know more about the USA than us Americans?

He was correcting your perceptions regarding international relations - not that he "know[s] more about the USA than us Americans." And don't Americans proudly proclaim to not care about the politics of other countries anyway? Unless you have to invade to, as they say, "keep us safe?" Quick. Without looking. What's the capital of Egypt???? Better yet, what's the capital of Iraq??? Afghanistan??? Pakistan??? Can you even speak more than one language???? Oh, that's right. Everyone else has to learn English. -_-