At the beginning of the 21st century, the United States is still a superpower. But it's a superpower facing competition from beyond its borders as well as internal difficulties. Its lower and middle classes are turning out to be the losers of globalization.
There are essentially three exclusive characteristics whose simultaneous development have served as the foundations of the United States's success up until now -- and they only appear in this particular combination in America. They are not only the country's biggest strengths, but also its greatest weaknesses. It's worth scrutinizing them more closely.