The US loses by discouraging citizens from living overseas

One in ten United Kingdom citizens live outside Britain. The number continues to grow. Yet only about one in seventy-five Americans live overseas. There are many reasons for that - size of the country, large tax disincentives (the US is one of very few countries which taxes non-resident citizens) - but the largest may simply be lack of knowledge of the world outside. In turn, this leads to a country with very little understanding of other countries and empathy for citizens of other countries. As a result, the US is at a disadvantage when creating and managing foreign policy, or growing international businesses.

It would benefit the US immensely if there were a large pool of US citizens who have experienced other countries, languages and cultures through immersion rather than simply visits, however lengthy.