Welcome To Terrorland: Mohamed Atta and the Venice Flying Circus (2004)

Three of the four terrorists who hijacked the planes on 9/11 trained to fly in Venice, Florida, a retirement community with a very old population. They attended flight schools run by two Dutchmen, one with connections to organized crime. Were these nineteen Arab terrorists simply traveling in Florida, or were they secretly being trained as part of a covert intelligence operation?