48 Hours: Unsung Heroes: When the twin towers were hit, the workers in charge of the buildings could have escaped. But they stayed to help thousands of others escape.
Port Authority Heroes: Part 2: When the buildings collapsed, some of these workers suddenly found themselves trapped. Could they escape?
Inside WTC 1: Thousands made it out of World Trade Center 1. Among those people were Louis Lesce and Michael Benfante. Read their incredible stories.
Special Security: In the wake of the September 11 terrorist attacks, companies across the country are rushing to make themselves more secure.
Tracing The Source Of The Anthrax: A former Soviet biowar scientist talks about his career, and the threat facing the U.S. He offers his ideas about where the anthrax originated.
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