"Essential reading for those in the biosciences, government and learned societies. It poses fundamental questions about undertaking science today" - Dr. Chris Langley, Aston University The objectives of the papers included in this NATO volume were to critically consider the science and technology policies necessary for defence against terrorism and other threats to security; to assess the priorities for governments, universities, national laboratories and industrial firms; to identify how governments and the science and technology community can most effectively work together to enhance our security; and to share the experiences of policy makers and policy analysts. The importance and relevance of this selection of papers to the policy community is reflected in the seniority of the contributors. These included Dr. Parney Albright who held the position of Assistant Secretary for Science & Technology at the US Department of Homeland Security as well as senior figures from the UK Home Office, UK Office of Science & Technology, the European Commission and NATO.