The best 9/11 video that you are ever likely to see.

[Splott David]

Here are three sums:

2+2=4
3+4=8
4+5=10

If you can't back these sums with 100%certainty do you say they're all wrong?

The short answer is, yes. Why? Because the conclusions of the sum i.e. the cumulative result is totally wrong.