FrontMatter -- Acknowledgments -- Contents -- Summary -- 1 Introduction -- 2 Geological and Geophysical Setting -- 3 Subglacial Environments: Biological Features -- 4 Drilling and Sampling Technologies and the Potential for Contamination -- 5 Antarctic Governance and Implications for Exploration of Subglacial Aquatic Environments -- 6 Findings and Recommendations -- References -- Appendixes -- A Statement of Task -- B Biographical Sketches of Committee Members -- C List of Acronyms.