Dont forget the spectre of a dozen free fall suicide bombers lobbing out of a knackered caravan......or rocket propelled taliban roman candles underslung from footlaunched fan motors....
All ppls to become trained firearms officers as part of the course. problem solved.
Umm.....the last exploding outrage in the USA was ...I believe....an exploding bicycle in Times square?? Maybe I'm mistaken on this, but a fleet of exploding bicyles..especially if fitted with the panniers commonly available without any form of licence....would cause devastation in the average supermarket car park.
If you just want to have a go at folk, you could just nick a van and mow down a load of pedestrians on the pavement. Pick your route and plan the outrage carefully......just a sec.....isnt that what happens at the moment anyway?
Even the USA is not this paranoid.