The Government back then ran a "consultation exercise" on vehicle tax and related environmental issues.
They were aware of the findings but chose not to act on them or make them public. The results of this have only just been made available under a FOI request which proved very difficult to obtain.
As for Trident, get rid. Waste of money, and one we will never use.
There are just 7 countries with nuclear weapons (eight if you include N Korea). Do you think that people of Germany, Spain, Italy, Australia etc etc feel vulnerable because they haven't got one?