In the law, a conspiracy refers to an agreement between two or more people to commit an unlawful act, or to deprive another person of his legal rights. The agreement to act must be moved toward a conclusion, whether or not it is actually accomplished. Plans made by a certain combination of people for unlawful or secret purposes may also be considered a conspiracy.
The actual scale of 9/11 was much smaller than projected, with the footprint of the main event being restricted to the World Trade Center area of New York. Given such a small scale, the event could have been easily “performed” by a much smaller (but talented) group.
