answer:This would not be the first hoax to come from self-described “heroes” and “experts” of 9/11. There was another reference recently to another “security consultant” who claimed to have been intimately involved with the rescue / recovery operations of 9/11. His claim was that he was called to the site by Rudy Giuliani himself – but his claim is untrue (as well as his advice for how to save oneself during earthquake and such building collapse events). If I can find his claim, and the claims by those who know he’s a fraud, then I’ll re-post. (The topic came up because of his claims during a recent earthquake – not this year’s northern Japan earthquake and tsunami, I think – that his advice could have saved many lies, and which many people mistakenly believe in.) These frauds are bad enough when all they want to do is cash in on others’ misfortune, but when they sell bad advice, they’re even worse, if possible. I don’t have an answer for your specific question. But you might ask the “school official” what his source is for making his claim. After all, he did write a book about the experience, whether true or not, and that’s a falsifiable claim. That is, if the book is false, then you could find that out. But you might ask how the “school official” has already determined that for himself.