Fran Spielman has the story:
City quietly builds backup 911 site at O’Hare Airport :: CHICAGO SUN-TIMES :: City Hall
Amid cloak-and-dagger secrecy, the Daley administration is building a backup 911 center at O’Hare Airport to handle emergency calls if a terrorist attack or natural disaster damages Chicago’s primary facility in the West Loop, City Hall sources said Wednesday.
Sources said the backup facility will be located in an O’Hare building that houses the airport’s communications nerve center.