This year's Reith lecturer is distinguished Professor of American history, Dr Daniel J Boorstin, the twelfth Librarian of Congress. In his Reith lectures, entitled 'America and the World Experience', he explores how the USA developed into the superpower it is today.In this first lecture entitled 'The Birth of Exploration', Dr Boorstin explains why the desire to journey to new and undiscovered lands was important in the development of the United States of America. He considers the difference between a 'frontier' and 'the wilderness' for the first colonisers of the continent and explains how a community spirit of adventure made it all possible.

Professor of Sociology and Director of the London School of Economics Ralf Dahrendorf gives his fourth Reith lecture from his series entitled 'The New Liberty'.In this lecture entitled 'On Difference', Professor Ralf Dahrendorf discusses the concept of diversity and averages. Evaluating the socialist philosophies of different countries, he dissects the averages that are found in society and contemplates what will happen when developing countries try to reassess their status as developed countries.

Professor of Sociology and Director of the London School of Economics Ralf Dahrendorf gives his third Reith lecture from his series entitled 'The New Liberty'.In this lecture entitled 'Justice Without Bondage', Professor Dahrendorf evaluates how liberty has been misinterpreted as equality and justice. He claims that advanced demographic societies are bound by a fear of political correctness. In this age, which he describes as 'the alienation of the enlightened progress', he argues that we have become the prisoners of our own good purpose. Society has taken the notion of justice and replaced it with equality. He contemplates whether we can weather the storm of 'social justice' in order to progress to a 'liberal justice' system.

Professor of Sociology and Director of the London School of Economics Ralf Dahrendorf gives his second Reith lecture from his series entitled 'The New Liberty'. In this lecture entitled 'The Liberal Option', Professor Dahrendorf explores the liberal options available to society. He questions why recognised problems in society, which also have visible solutions, do not make any great progress. Who is it that prevents this potential from being realised? To answer these questions he explores how social-economic structures affect our liberty.

This year's Reith lecturer is the eminent German-British sociologist Ralf Dahrendorf. Previously a Professor of Sociology at the Universities of Hamburg, Tübingen and Konstanz, he has been a leading figure for liberal politics and an authority on class divisions in modern society. In 1970 he became the European Commissioner in Brussels before taking over as Director of the London School of Economics and Political Science in 1974. In his Reith series entitled 'The New Liberty', he questions the definition of freedom.In his first Reith lecture entitled 'From Expansion to Improvement', Ralf Dahrendorf argues that we should think about autonomy in a new light. He explores how philosophy, sociology and economics all affect our elemental desires and the definition of freedom. He reflects on the evolution of liberty and questions how we could improve our lives.

Alastair Francis Buchan, the Montague Burton Professor of International Relations for Oxford University, explores the concept of 'transnationalism' in his sixth Reith lecture. Speaking from his series entitled 'Change without War', he concludes his lectures on international relations.In this lecture entitled 'The Search for a New Order', Professor Alastair Buchan speculates whether we might be able to control and adapt the dynamic process of change in order to reduce the eruptions of conflict around the globe. He explores whether functional co-operation and changes in national attitudes could lead to a more open, transnational society.

Alastair Francis Buchan, the Montague Burton Professor of International Relations for Oxford University, reflects on the global power of the United States of America in his third Reith lecture. Speaking from his series entitled 'Change without War', he reflects on new international relations.In this lecture entitled 'The Troubled Giant', Professor Alastair Buchan explores why the United States of America is still the largest and strongest world power. He analyses how its decisions continue to affect the climate of world politics more than any other country and asks why this continues to be true. He examines the USA's relationship with the power structures within the Soviet Union and China, as well as looking at the triangular economic relationship between the USA, Europe and Japan.

Director of the Royal Institute of International Affairs and political economist Sir Andrew Shonfield gives the sixth of his Reith lectures from his series entitled 'Europe: Journey to an Unknown Destination'.In this lecture entitled 'Wanted: An Instrument for Crisis Management', Sir Shonfield considers the long-term future of the European Community. Analysing the effect of Britain's entry, he also anticipates an adaptation of the role of the European Commission into the next level of European cohesion. Sir Shonfield concludes his series by exploring the practical measures which should be taken in order to create a democratic, forward thinking and cohesive Europe.

Director of the Royal Institute of International Affairs and political economist Sir Andrew Shonfield gives the fifth of his Reith lectures from his series entitled 'Europe: Journey to an Unknown Destination'.In this lecture entitled 'From Technocracy to Democracy?', Sir Shonfield considers how the inclusion of the British into the European Community could lead to a more politically democratic form of governance. Taking this into consideration, Sir Shonfield questions whether the European Community will achieve greater democratic legitimacy.

Director of the Royal Institute of International Affairs and political economist Sir Andrew Shonfield gives the fourth of his Reith lectures from his series entitled 'Europe: Journey to an Unknown Destination'.In this lecture entitled 'A European Foreign Policy towards Asia and the Soviet Bloc', Sir Shonfield explores the policy problems of the enlarged European Community in relation to the rest of the world. Shonfield explores how external economic relations and different foreign policies must be created for different areas. Exploring how this could be done, Sir Shonfield analyses industrial powers like Japan, underdeveloped countries in the Indian sub-continent and problematic Eastern European countries.