Of course all the media lead with ",man arrested" or "swastika" on placard or shouts of "jiihad"
The fact that around 60,000 people domeoonstrated perfectly peacefully doesn't seem to count nor does the media even acknowledge a single speaker, totally shut out, Corbyn, the Palestine ambassador, several MPs, Mick whatsisname. The power of propaganda by omission.
Actually I was right beside the young man yelling jihad, which he did for about 15 seconds - it was taken up by about 30 people around him. Then a young man came up to explain jihad does not imply violence or war.
It was a totally trivial incident.
Jeremy Corbyn gave an appropriately passionate speech. Mick the Railway union man did well,