New York City Mayor Rudolph Giuliani calls for the evacuation of over one million residents, workers and tourists from lower Manhattan.1

Throngs of People crowd onto streets, highways and bridges to evacuate lower Manhattan. Many walk north or across bridges to Brooklyn. Photograph by Roberto Rabanne. Courtesy of The Roberto Rabanne Archive.

1 Evacuation of Lower Manhattan” National September 11 Memorial and Museum n.d. Web. March 17, 2011
Courtesy of the National 9/11 Memorial and Museum