We are doing some essential maintenance work and you will not be able to register or update your profile setting until we've finished, which should be at about 9pm this evening.
We apologise for any inconvenience - you will be able to register shortly. In the mean time you will still be able to log in as usual.
Students and politicians may struggle to accept this – especially in the wake of the attacks in Paris – but the best we can do is contain a phenomenon that is as old as the hills, says George Kassimeris
