The mission of the London-based independent Commission on National Security in the 21^st Century set up in May this year is to review the current security landscape and suggest an independent security strategy for the United Kingdom. Co-Chair Lord Robertson of Port Ellen and Deputy Chair Ian Kearns set out their view of the threats and changes in the security landscape and suggest ways in which security should be re-thought. In particular they stress the urgent requirement to project governance more effectively into failed states and to create more effective international control and storage regimes for fissile nuclear material.