The Twin Towers were designed to withstand multiple impacts from airliners full of fuel - an event that was considered not a possibility, but an inevitability, for such tall buildings.
These nineteen terrorists and their supporters hatched a plan, and it succeeded beyond their wildest dreams.
Jesse is right that the buildings were taken down with explosives. The terrorist attack was allowed to occur as a cover story; the attack, its effects amplified by explosives, served as a perfect justification for our "War on Terror" (or whatever the Change-We-Can-Believe-In Administration calls it now). Jesse is right about the attack's use as a justification for a war.
But there are many motivations for the attack and the events that have since followed... it goes far beyond oil or lithium.
It goes beyond the heroin pipeline that has been opened up, with well over 90% of the world's heroin market now having been cornered by essentially one cartel.
The 9/11 incident has been the gift that just keeps on giving... to the right people.