Unlike the book, the PBS documentary is far more wary of the possible end of the current era of globalization. For example, they include a parallel between radio stocks of the 1920s and dot com stocks of the 1990s: both were industries built on new technology that had little capital, but fell prey to a market bubble. Likewise, the documentary draws an unsettling parallel between the terrorist attacks of September 11, 2001 and the terrorist assassination of Archduke Franz Ferdinand in 1914.