Testing

I couldn't agree more. You have to first test things before trying them in public. It is as simple as that. I have to say that not getting a trigger mechanism to work is more embarrassing than the uselessness of the "bomb", that is something you can test as much as required until you get it right.

I have to say the police and fire service only treated the attack at Glasgow airport the way they did to be sure the gas canisters could be safely removed, to check that there weren't any other vehicles with inflammable material and because there was significant smoke damage to the main terminal building. I know this as I was there on Sunday.

We have been saved from any serious threat in the past week thanks to the incompetence of the so called terrorists. I doubt that will continue indefinitely. Personally I hope that it does.