I think not said:
The point is, that the isnurance company WOULD NOT pay Silverstein the money if they thought insurance fraud was involved, DO YOU UNDERSTAND?
Here you have a little portion of your answer.
http://en.wikipedia.org/wiki/Larry_Silverstein
Larry Silverstein, backed by a number of investors, signed a 99-year lease for the World Trade Center complex just seven weeks before it was destroyed in the September 11, 2001 attacks. The deal was described in a press release on July 24th, 2001, as:
"Silverstein Properties, Inc., and Westfield America, Inc. will lease the Twin Towers and other portions of the complex in a deal worth approximately $3.2 billion – the city's richest real estate deal ever and one of the largest privatization initiatives in history.[1]"
The lease agreement applied to World Trade Center Buildings One, Two, Four and Five World Trade Center, and about 425,000 square feet of retail space. Silverstein put up only $14 million of his own money [2] and the $3.2 billion deal closed on July 24th.
Larry Silverstein already owned 7 World Trade Center which was also destroyed in the attack. Silverstein was awarded an insurance payment of more than three and a half billion dollars to settle his seven-week-old insurance policy[3]
. In addition, the Silverstein group sued the insurers liable for the World Trade Center for another three and a half billion dollars, claiming that by an obscure clause in their contract, the two planes constituted two separate terrorist attacks[4]. Most of the insurers prevailed in a trial (Silverstein was never granted an additional $2.3 billion in extra insurance money as a result) while others are still in litigation[citation needed].
and here.....
Silverstein is known among Researchers questioning the official account of 9/11 for a statement he made on a PBS documentary in which he stated that he and others had decided to "pull it" in reference to WTC Building 7, following fire damage, which many interpreted to mean he had ordered the demolition of the building given the manner of its collapse.
Silverstein's office responded that no such order was given.