Larry Silverstein had very extensive knowledge of New York and the WTC complex. If anyone were to buy WTC 1&2 and done research before the purchase, they would realize the cost to remove the asbestos would be astronomical and that the buildings were not wired for the high tech world of connectivity that we live in today. Therefore making them obsolete at best. Tenancy was steadily dwindling. 150 Million will get you a 7 billion dollar payout. Not a bad day at the races...