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Sears Tower

Iconic Chicago tower thrives on friendly security

Security director has ‘open’ philosophy while protecting 12,000 employees
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06/04/2013

CHICAGO—At 110 stories, 1,450 feet tall and 4.5 million square feet, the Willis Tower is an architectural icon in the United States. Formerly known as the Sears Tower, the building’s area is equal to about 100 football fields or 17 Chicago city blocks if laid out flat.