SIR – The recent visit to Bradford by the English Defence League inspires me to write. As someone who has studied the holocaust, we should all be well aware of the dangers of political fringe groups such as the EDL and how the Nazis grew from a small far-right wing party.

Many are not learning from this lesson from history and what could happen if dark groups such as the EDL attained political power. That does not bear thinking about.

R Halliday, Crag Road, Shipley