Title: 500 days
Subjects: War on Terrorism, 2001-2009, World politics, Prevention, Terrorism, September 11 Terrorist Attacks, 2001, September 11 terrorist attacks, 2001, War on terrorism, 2001-2009, Terrorism, prevention, World politics, 21st century, nyt:combined-print-and-e-book-nonfiction=2012-09-30, New York Times bestseller
Time periods: 21st century