If you take virtually any aspect of 9/11 and scratch beneath the surface, you fairly quickly find problems with the 'official' story. We have tried to present the clearest of these problems below:
 1. The mysterious collapse of WTC building seven at 5:20 pm
Until recently, few people had seen video footage showing the collapse of the 47-storey WTC building seven. But the event was recorded from several different angles by the major US news networks. The collapse is clearly a controlled demolition, and an extremely professional one at that. Nothing else can explain the perfectly symmetrical collapse, at free-fall speed, onto its footprint.

Why was it demolished and who planted the explosives? Why do the FEMA and NIST reports try to explain the collapse based purely on impact damage from tower debris and randomly distributed fires? These effects would have weakened the supporting columns assymetrically, and that assymetry would have caused substantial tipping.
View the collapse as an mpeg video (if you have a slow connection, right-click on the link and select 'save target as' to download the file). Compare this collapse with the Hackney and Oslo demolitions carried out by Controlled Demolition Group Ltd.

Danny Jowenko, a Dutch demolition expert (www.jowenko.com) was featured on a Dutch television program on 9/11. When shown video of the collapse of WTC building 7 he said it was clearly a controlled demolition - a very professional job (Google Video clip). He recently confirmed these comments over the telephone to "Pilots for 9/11 truth" (mp3). Read more...
"WTC7 collapsed exactly like a house of cards. If the fires or damage in one corner had played a decisive role, the building would have fallen in that direction. You don't have to be a woodcutter to grasp this."

 2. The explosive and complete disintegration of the WTC twin towers
Impressively, the towers hardly shook when they absorbed the impacts of the jet aircraft. They stood resolutely, just as they were designed to do. There was an initial fireball as jet fuel burned (much of it outside the buildings). This was followed by very subdued, thickly smoking, fires across a few floors as office contents burned with insufficient oxygen.

Yet incredibly, these massive steel structures (236 steel exterior columns and 47 steel interior columns connected by steel trusses) began to literally explode from the top down, and disintegrated completely in a matter of seconds.

Several different government-sponsored and independent theories have been put forward, attempting to explain how fires and impact damage alone caused the towers to collapse. These theories are contradictory and do not explain all the available evidence. They do not even fit with what we see in the video footage. The theory that best explains what we see, and other key evidence, is that explosives and thermite were used to bring down the buildings. Read more...

The bombs that exploded in the World Trade Center twin towers in New York yesterday were some of the biggest we have ever seen. "I would guess that close to a tonne of high explosives was required", says Bent Lund, a Danish explosives expert...
- B.T., 12 September 2001 (article in a Danish magazine - in Danish)
 3. The mysterious exit hole inside the third ring of the Pentagon
This is 'Government Exhibit no. P200032' from the Moussaoui trial. It shows the exit hole made in ring C of the Pentagon. It is very difficult to explain how a passenger aircraft could penetrate 95 metres into the Pentagon and make such a compact, round exit hole. There were also columns in the 'firing line' that were virtually undamaged.
Read more...

It was reported that the plane hit the lawn first and slid into the building, but photographs (1 2) reveal no significant marks on the lawn.

"The first time I saw the C-Ring exit hole, a chill went down my spine because I knew that the only way to cut a clean hole in a reinforced brick wall (including cutting through rebar) is with a shaped charge warhead. With any type impact or wave, forces would have caused the wall to crumble or cave in, without cutting through rebar."
 4. The 'official' flight 93 crash site is just a smoking hole in the ground
This is 'Government Exhibit no. P200057' from the recent Moussaoui trial in the US. The government claims that this is the point of impact for United Airlines Flight 93 in Pennsylvania, when it crashed after passengers 'fought back'.

Why are there no major pieces of debris visible?

Click on the image to enlarge it and have a good look. How can a Boeing 757 just disappear on top of bare dirt? Use the cars in the image to judge the scale. The 'crater' is only about the size of 4 or 5 cars!

Take a look at this close-up, which featured in Popular Mechanic's Debunking 9/11 Myths, and this live TV footage on YouTube.
"[It looked] like someone took a scrap truck, dug a 10-foot ditch and dumped all this trash into it... I stopped being coroner after about 20 minutes, because there were no bodies there."

 5. The complete failure to follow normal operating procedures and intercept the flights
The amazing success of the september 11 attacks required a miraculous level of 'good luck' for the alleged hijackers in terms of failures at so many levels in the American security and defence apparatus.

This cartoon portrays the blindness of the CIA and airport security. Even more amazing is the failure of the FAA and NORAD to work together in line with standard procedures to scramble jets and intercept the flights once it was clearly apparent they had been hijacked.

 6. Several alleged hijackers are still alive
Several of the alleged suicide hijackers are still alive and were interviewed by mainstream newspapers after 9/11. The four pictured above were interviewed by the British Daily Telegraph, on 22 September 2001. Yet the list of 19 hijackers has never been 'corrected' and their names and images were still being used in the Mousaoui trial. None of the hijackers' names were included in the four official passenger lists. None of the hijackers allegedly on American Airlines flight 77 were listed among the bodies identified forensically at the Pentagon. What evidence is there that any of the alleged hijackers were even on the flights?
"Last year, we got the final [9-11 Comission] report, an extensive, prosaically impressive report, but as some of us sat down to read it, the errors and omissions immediately jumped out at us. How was it that it took over an hour after the first transponder went off before planes were scrambled to meet the threat, all of them too late? What happened to those reports that surfaced within months of September 11th stating that seven or more of the alleged hijackers had come forward and claimed they were victims of stolen identities and were alive and well, living in Saudi Arabia, Morocco, and Tunisia? Why did the Commission choose not even to address this? What about Osama bin Laden and his role in the Mujahedin backed by the CIA in the 1980s to fight the Soviets? The Commission didn’t go there ... We cannot afford to shy away from inconvenient truths."