This year's Reith Lecturer is the distinguished engineer, Lord Broers. Alec Broers is President of the Royal Academy of Engineering and Chairman of the House of Lords Science and Technology Committee.

In his fifth and final lecture, Lord Broers explores the responsibilities of the technologist and questions their role in society. Who regulates technology? Is it up to the individual technologist or for companies, or governments to decide?

He also examines the areas where we are likely to see the most significant advances in the next decades, and asks: who will be the winners in the race to develop future technologies?