BBC News photogrpah from 1985. 1985: Ken Livingstone and Jesse Jackson, on the plinth of Nelson's Column, during an anti-apartheid rally in London.
http://www.bbc.co.uk/london/travel/features/trafalgar_square/slideshow/4.html
It seems that the unholy alliance of Red Ken and Spittin' Jesse is nothing new....they probably have weekly conference calls to fine-tune Socialist shakedown strategies.
It's a further, terrible insult to Great Britain that they soiled the memory of Admiral Lord Nelson by holding their meeting in Trafalgar Square.