The destruction of the towers was an Israeli intelligence operation so the Americans would get dragged into the middle-east to push Israeli foreign policy and to hide malicious financial transactions (by destroying records) that benefited jewish people and their henchmen. The American government (those who were deemed by jewish people to need to be made aware and who would support it, likely people jews had blackmail on, were aware of the operation and allowed it).
The towers were brought down by explosions that were placed in the building by jewish operatives doing "maintenance" work. The Pentagon was hit by a missile not a plane.
The owner of the trade towers was made aware of the plan months before it was executed. This plan was drawn up well over 5 years before it was executed.