Abraham Lincoln said at Gettysburg: "We are met on a great battlefield of that war. We have come to dedicate a portion of it as a final resting place for those who died here that the nation might live. This we may, in all propriety do. But in a larger sense, we cannot dedicate, we cannot consecrate, we cannot hallow this ground. The brave men, living and dead who struggled here have hallowed it far above our poor power to add or detract."
The word hallow means "to make holy."
The only people for whom the WTC event would be holy are the Islamokazis, and I sure don't share their opinion of the event.
Is every place one or more people died considered holy? The Murrah Building site, Waco, etc.?