Changes

dot-com boom of the 1990s, and it was the internet industry, not world trade, that filled it.  Promoted to the public as government-promoted export-import, only 5 percent of the WTC leases were held by trade service and export-import tenants.   

dot-com boom of the 1990s, and it was the internet industry, not world trade, that filled it.  Promoted to the public as government-promoted export-import, only 5 percent of the WTC leases were held by trade service and export-import tenants.   

By comparison, the privately developed Sears Tower was built around the same time at a cost of only about $150 million –-- only one-fifth the cost of the WTC -- and took only three years to complete compared to the ten years for the WTC.   

By comparison, the privately developed Sears Tower was built around the same time at a cost of only about $150 million -- only one-fifth the cost of the WTC -- and took only three years to complete compared to the ten years for the WTC.   

The WTC became a symbol of American capitalism and economic dominance, and a vulnerable target for [[Islamic]] [[terrorists]].  In 1993, Muslim terrorists detonated a massive truck bomb in an underground parking lot with the goal of knocking the towers over and killing its capacity of 25,000 workers.  This attempt failed, killing only a few, but caused smoke and evacuation of the building.

The WTC became a symbol of American capitalism and economic dominance, and a vulnerable target for [[Islamic]] [[terrorists]].  In 1993, Muslim terrorists detonated a massive truck bomb in an underground parking lot with the goal of knocking the towers over and killing its capacity of 25,000 workers.  This attempt failed, killing only a few, but caused smoke and evacuation of the building.