Dimitri Khalezov has spent 10 years researching and writing this book. Download links:
 http://www.youtube.com/watch?v=x0pdmokX9s8

Or read at:
 http://www.scribd.com/doc/170266922/9-11thology-The-third-truth-about-9-11-or-Defending-the-US-Government-which-has-only-the-first-two

In a 2010 interview, Khalezov explained that you can't build a skyscraper in NYC without an approved demolition plan. On 9/11, the World Trade Center's demolition plan was put into action to demolish the complex.

Khalezov learned of this demolition plan from his job in the Soviet Union. He had worked in the nuclear intelligence unit and under an agreement between the Soviet Union and the USA, each country was obliged to inform the other of peaceful uses of nuclear explosions. The WTC was built with 3 thermo-nuclear charges in its foundations.

Note: underground nuclear explosions do not produce mushroom clouds. This is only ever seen when the explosion takes place above ground. On 9/11, the explosions were deep underground.

More info:
 http://www.bibliotecapleyades.net/sociopolitica/esp_sociopol_911_154.htm

You can watch the 2010 interview at:
 http://www.disclose.tv/forum/dimitri-khalezov-wtc-nuclear-demolition-full-playlist-t21675.html
Video # 4 - WTC's demolition plan
Video # 14 - WTC 7 (which fell ½ hour AFTER the BBC announced its collapse).
Videos # 24/25 - chronic radiation sickness of WTC responders (their cancers are not due to asbestos poisoning)

Khalezov was interviewed on 4 Sept 2013:
 http://www.renseradioarchives.com/harris/

Here is a recent article mentioning Khalezov:
 http://www.veteranstoday.com/2013/12/28/mossad-bush-planned-executed-911/

I know it is preposterous to claim that the WTC was brought down by nukes. But note that the place where the WTC once stood is called 'Ground Zero'. If you look up the meaning of 'ground zero' in the old dictionaries you have at home, you'll find that there would only be one definition. It is what you call a place that has been nuked.

After 9/11, the US government sent people out to switch all the dictionaries in the public domain. The replacements differed only in the meaning of 'ground zero'. They show extra definitions for that term, to obfuscate the original single meaning.

For example, if you have a genuine old Merriam-Webster dictionary, you would see this:
ground zero n (1946) : the point directly above, below, or at which a nuclear explosion occurs.

The replacement books (even of old editions) show two extra definitions and this is what you'll see:
ground zero n (1946) 1 : the point directly above, below, or at which a nuclear explosion occurs. 2: the center or origin of rapid, intense, or violent activity or change 3: the very beginning : SQUARE ONE

Have a look at this video:
 http://www.youtube.com/watch?v=mBQuoPi_grw
At 6:05 mins, he shows the old and new definitions of 'ground zero'.