Something vaguely interesting in the wake of recent terrorist attacks.

[Burney]

Postcodes are odd, aren't they? How come SE3 is Blackeath and Kidbrooke but SE5 Camberwell? And who's ever heard of SE4?

Back when I cared about such things, it used to annoy me that Croydon didn't have a London postcode, but Norwood did. Always seemed completely arbitrary to me.