The United States of America entered the 21st century as the world’s sole superpower after the fall of the Soviet Union in late 1991. Certainly a lot of superlatives can be attributed to the U.S.: the third most populous country in the world with 327.7 million people; the largest economy;[1] the most powerful military, among others. The U.S. also has the second largest higher education system (China overtook the U.S. in this regard roughly around 2001), and it is the top destination for globally mobile students.