We continue to argue about the destruction method used on the Twin Towers in 2001. Here's my own theory: Controlled demotion by explosives in the exterior frame, and mini- or tactical nukes in the core. The 9/11 event was a continuation of the Manhattan Project, begun during WWII to produce the atomic bomb. However, the Manhattan Project did not shut down: it continues to this day in the form of radiation biology studies and experimentation. (See "From Chemtrails to Pseudo-Life: Living in the Manhattan Project)
Back in the 1970s, the towers were designed and built in a novel way, with two steel frames: an interior steel core that was hollow and interlocked steel assemblies on the outside. Their broad-daylight future destruction may have indeed been part of the plan. Regardless, the pulverizing power of nukes has been known since the 1950s. Nuclear devices placed in the World Trade Center towers' cores would by themselves have taken down the buildings, but if demolition by explosives was also employed -- with charges placed in the external steel frame -- this was what would be seen on video and by anyone who was there. The demolition wave, the squibs ... so of course people would be saying, "It looked just like a controlled demolition!"
The point being, one method was the VISIBLE method, but not the necessary one. Nukes were the HIDDEN method and really did all the work. Why both? Because nuclear detonations release dangerous isotopes and the human population continues to develop cancer. Conventional explosives would become the safe cover story for a nuclear attack in America.