In the context of austerity Olympics, with social cleansing very much in evidence, 18,200 troops on the street and surface-to-air missiles on the roofs of housing estates and in public parks, the corporate-Olympic zone and parts of London resemble something somewhere between a mall and an arms fair. In this evening’s edition of The Circled A journalist Anna Minton, author of Ground Control: Fear and Happiness in the Twenty-First Century City, discusses urban space, control, surveillance and liberty. Tune in from 9:00pm.