@Pjen
The business about not being sure about the 7/7 explosive is spurious.
They found the bath it was mixed in.
Do you remember the 21/7 fiasco, they have had all four of those bozos locked up for over a year.
The similarity between the 7/7 and the 21/7 operations were so striking that I would not give odds /against/ them being parallel cells.
Incidentally the black guy from 21/7 who scarpered to Italy was yakking away on his mobile to someone in Saudi - which makes me suspect that both lots were somehow connected to Al Quaeda.
Personally I doubt that they intended using a Peroxide bomb, since it failed on 21/7, also that chemist’s link that you provided (I’ve seen it before) is in my view pretty stupid, heat distillation of Hydrogen Peroxide might be dangerous, but freeze distillation is simple and safe.
For obvious reasons, the security services are keeping tight lipped about things, but they have got the four from 21/7, clues from 7/7, Richard Reid and another shoebomber that they located via Reid’s mobile.
That makes ten young lunatics, is it that unlikely that there are at least another ten out there ?
I agree that petrol would be enough to cause havoc on a flight, but reckon it is much more likely that they would mix up something like Nitro Glycerine, which is easy to make and requires three liquids. A cookbook seldom contains just one recipe.
There have been past problems, the Ricin episode was embarrassing, but they did find a recipe for Ricin - which is not exactly the sort of thing you expect in a Halal kitchen.
Also, the timing was inconvenient for Blair, which suggest that something made them act before the security services were ready, it might have been Pakistan, possibly the USA, most likely something entirely different.
There is another thing to consider, getting a successful prosecution is not at all important, once you have identified someone you get a load of their contacts, probably get a load of information from them, and you can keep a careful eye on what they get up to.
I would be totally unconcerned about prosecuting them, and not very worried about releasing them - they are a lot more useful outside prison, and if they had one brain cell they would stay away from their mates
- and their mates would stay away from them … unless they suspected them of turning informer - which is what I would let out if they did not turn informer.
Effectively the punishment for not informing is … capital.