The Liberty to Know ' The domain of the anarchic and the arbitrary appears to be extending in society generally. To acquiesce in its extension in broadcasting would probably have the effect of accelerating its extension in society.' In his IBA lecture Freedom and Censorship, DR CONOR CRUISE O'BRIEN, Editor-in-Chief of The Observer, called for greater support for the principle of public responsibility in broadcasting. Michael Charlton chairs a discussion between Dr O'Brien, Geoffrey Robertson , barrister and writer, and Richard Francis , Director of News and Current Affairs in the BBC. about the relationship between broadcasters and governments. Producer TOM SUTCLIFFE