This ebook consists of a summary of the ideas, viewpoints and facts presented by Thomas Friedman and Michael Mandelbaum in their book "That Used to be Us, How America fell behind in the World It Invented and How We Can Come Back". This summary offers a concise overview of the entire book in less than 30 minutes reading time. However this work does not replace in any case Thomas Friedman and Michael Mandelbaum book.
Friedman and Mandelbaum put forward that after the Cold War four big challenges faced America and the also believe that how the nation responds to these challenges will define the future of America. Therefore they say it is time for America to respond to these challenges.