It's funny in all the years of the IRA bombing mainland UK there were never the calls for ID cards, phone taps etc like there is now and I would consider the IRA than a bigger threat and Islamic terrorists are now.
The provos were much more capable than any Al-Qaeda type group is now of causing chaos in the UK.
I wouldn't be surprised if there are still a few hiddens caches of arms in mainland UK that have been forgotten about or lost.
__________________
|