By the way of extensive reading materials and watching videos of the 9/11 victims, witnesses (firefighters) statements/interviews, many experts in their fields, e.g., pilots, explosive demolition experts, former US generals, former firefighters, etc.

It is a rude awakening on the depth of the corruptness and the positions these government officials hold.  It has the equivalence of how a crime boss operates a criminal enterprise but on an huger magnitude w/many resources at their disposal.  The same thing goes on in Hawaii w/our politicians, e.g., HNL Rail Transit.

The internet has an overwhelming abundance of information and videos regarding 9/11 or almost any given subject or person.  Google does suppression of information depending on the subject.   Other search engines to use that the algorithms are not yet "rigged" in suppressing on searching strings of keywords, e.g., Bing, Yahoo, AOL, DuckDuckGo, etc.