On another note, surely this advice needs a thread of its own to help spread to the masses.
Seperate from being used to play something down, the advice is sound, and a big campaign was done based on it.
Living and working in London, this is something everyone is at risk of, and should know how to deal with.
Maybe it would be worth having a thread in Crime with all the latest threats, pieces of advice (run hide tell) etc. These are all things that happen in London and affect people daily. London Prepared has lots of campaigns to take from.