Conspiracy theories are the new religion and the demented 9/11 plots have no shortage of believers
For most people under 30, the events of 9/11 are little more than a blurred memory of exploding planes, collapsing buildings and the kind of images more normally associated with a Hollywood disaster movie.
For those of us who are older, the 11th of September 2001 is the demarcation point. Everything changed that day and they will never return to the way they were on September 10.
Most 15-year-old events eventually fade into the memory. But the sheer scale of the attacks, coupled with the constant repeats of the footage, ensure that it's still fresh today.