America is identified as a nation of immigrants. These immigrants are thought to be the source of its subcultures. It is also a nation of individual explorers and inventors. Their activities are also a source of diverse subcultures. Many notable movies have made heroes of such innovators in different fields of endeavor. Michael Moore's movie "Who to Invade Next" is a documentary about his trips to other countries in search of more successful institutions of work, education, health services, and incarceration. The premise of the movie is Moore has come to invade the other countries and steal the secrets of their successes in order to reform similar American institutions. Moore finds only mild amusement rather than amazement from his "victims." He discovers the advances he attributes to other countries were originally American innovations, adopted in other societies but abandoned in America, which has become strangely timid about progress and reform.