Our thanks to Alan for this.

---

If you’d like email notifications of our new blog pieces, please enter your email address in the box near the top of the right-hand column and click ‘Subscribe’. Our YouTube channel is here, our Facebook channel here, our Twitter channel here. If everyone who reads this gives us £5.00 – or even better, £5.00 or more, monthly – we could change the world. You can support our work by making a donation here.