Pathetic ignorance.  Educated individuals look for data that contradicts their held beliefs that they might be bolstered by a lack of refutable evidence.  The pathetic look only for data and opinions that support their beliefs, that they may appeal to popularity and hope the rest of the world doesn't notice their fallacies.

It only took a simple Google search to find this in the first few results:
http://www.dailymail.co.uk/news/article-2056088/Footage-kills-conspiracy-theories-Rare-footage-shows-WTC-7-consumed-fire.html