Part I: Ways Of Seeing, Ways Of Not Seeing <br>1. Sensing Absence: How to See What Isn ' 't There in the Study of Science and Security; Brian Rappert <br>2. An Open Day for Secrets: Biological Warfare, Stenganography, and Hiding Things in Plain Sight; Brian Balmer <br>Part II: Practices Of Inattention <br>3. What ELSA Makes Small in Nanomedicine: Non-Concerns in Current Trends in STS; Michael Schillmeier <br>4. Missing the Obvious - Coping With Scientific And Technological Change In Chemcial and Biological Weapons Arms <br>5. Control, 1968-2013; John Walker <br>6. Non-News Values in Science Journalism; Felicity Mellor <br>7. Project Jefferson: Technological Surprises and Critical Omissions; Kathleen Vogel <br>8. Taking Care of Security in Synthetic Biology; Sam Weiss Evans and Emma Frow <br>Part III: Sights and Sensitivities <br>9. What Counts as the Hostile Use of Chemicals?; James Revill and Brett Edwards <br>10. A Phoenix of the Modern World: The Re-Emergence of National Science Advisory Board for Biosecurity and its Implications for Scientific Practitoners; Gerald Walther and Malcolm Dando <br>11. Causing Problems: Classification Of Humanitarian Concerns Regarding Explosive Weapons; Richard Moyes <br>12. Concluding Absences; Brian Rappert and Brian Balmer<br><br>