let's speak to kevin hurley, former head of the counter terrorism and public order department for theoon. i wonder what you make of the sort of understanding and picture we are building up of the nature of this device. and picture we are building up of the nature of this devicelj and picture we are building up of the nature of this device. i would go along very much with a lot of what richard walton has just said, but i disagree with his use of the phrase islamic. we need to be very careful in using that kind of term. it would be more appropriate to describe that as extremism. i urge course on with people using the word islamic, because that tends to two drive is lahm afobe, and we need to be much more careful —— —— islam are phobic reactions. yes, it looks like it has failed to detonate correctly, just like the bombs did in 21/7, just like the bombs did in 21/7, just weeks after the 7/7 bombs. who knows what the constituents of it are, but probably quite likely a mixture of trice atoned tri— peroxide, but that would be conjecture, but it does tend to be the bomb of choice for these p