When we have Isis acts of terror here it is not going to be bombs.
It’s going to be several loonies walking around a shopping center or train station with automatic rifles taking people out or groups kidnapping people and filming them being decapitated.
Bombs are not nearly horrific enough for these people.
Growing up me and my friends spent a lot of time up London and my mum always worried about me being caught up in an IRA bomb, irrational maybe. But considering they blew up an army recruitment center on my local high road and one of my friends (a child) charged (peanuts) the press to take photo from his back garden , maybe it was not so irrational after all.
This is all just sheer speculation on my part, but if you know what these people are capable of and all what stands between them and you is geography, for now. You should be a tinsy bit concerned.