That Used to Be Us
 That Used to be Us: How America Fell Behind in the World It Invented and How We Can Come Back is a non-fiction book written by Thomas Friedman a Pulitzer Prize-winning New York Times columnist and author with Michael Mandelbaum a writer and foreign policy professor at Johns Hopkins University. They published the book on September 5 2011 in the United States. It addresses what the authors see as the four major problems America faces today and possible solutions.