LONDON, ENGLAND - SEPTEMBER 09: (L-R) Mayor of London Boris Johnson and former mayor Ken Livingstone pose at the Olympic Stadium as they attend the closing ceremony of the 2012 London Paralympic ... more 

LONDON, ENGLAND - SEPTEMBER 09: (L-R) Mayor of London Boris Johnson and former mayor Ken Livingstone pose at the Olympic Stadium as they attend the closing ceremony of the 2012 London Paralympic Games, on September 09, 2012 in London, England. (Photo by Stefan Rousseau - WPA Pool/Getty Images) less