I said secretly, so the sources are of course hidden. They will never show you the cellar blueprints, and will never confirm why they demolished the three WTC towers this way. But it started with Sears, and worked for WTC. Question is if they would demand it for future such skyscrapers, as they saw the radiation problems with the WTC. Could not touch it for 10 years. A more conventional destruction would be better nowadays, but those were the days in the construction business.
