$1.1 billion Cost of the World Trade Center buildings
$1,197 Nonstop one-way fare for a Boston-Los Angeles flight on American Airlines
$4 Cost of a box cutter
116,000 American flags sold by Wal-Mart on Sept. 11
6,400 Flags sold by Wal-Mart on that date last year
$40 billion Value of the emergency antiterrorism package approved by the U.S. Congress on Sept. 14
$11.1 billion Amount of federal aid approved after Hurricane Andrew struck in 1992, until now the most expensive disaster in U.S. history
30,000 Body bags set aside for New York City after the World Trade Center terrorist attacks...