....and what else, MI5?...try anagrams of TURPIN as the marines were to recommend, so many years ago now....TURNIP for example....an ill cult joke around 'turning up' at an ill cult rendezvous.....'turn-ip'.....turn up and be counted...however this has all gone a bit further than 'mobile phones' and trigger commands to create a 'flash crowd' - hasn't it?....go figure:

http://www.philosophers-stone.co.uk/