Our final century? Threats to the survival of the human race in the 21st century: Part 2

Part 2: Threats from emerging 21st century technologies

Martin Rees warns of the risks of a major catastrophe from the misuse, by 'error or terror', of developing technologies; and the particular concern that they empower a small number of people, even a lone individual, to inflict severe, even global damage in our ever more vulnerable and interconnected world.