Many individuals assisted in the present effort. I thank the principal investigators, Ross Anthony and Mike Hix, for their effective leadership. I thank Dr. Caren Kamberg and Dr. Roberta Shanman for their invaluable assistance identifying, aggregating, and keeping track of literally thousands of references. I thank Beth Giddens for her efforts to make the document more reader-friendly. I thank Dr. Terrence Sejnowski for his ever-available neuroscience expertise. I thank Dr. Hermona Soreq for providing very helpful feedback on Chapter Eight. I thank the reviewers for their advice, expertise, and assistance with this difficult document.

I am indebted to many individuals for discussions or assistance, including (but not confined to) the following: Muhammed Abou-Donia, Edson Albuquerque, Walter Allan, William Augerson, Mike Boyle, Barbara Brake, Clarence Broomfield, Kelley Brix, William Baumsweiger, Ronald Clawson, Bhupendra Doctor, Albert Donnay, William Doyle, Edward Elson, Marge Filbert, Timothy Finnegan, Ari Friedman, Lunette Friend, Clem Furlong, Tim Gerrity, Arnold Gass, Mary Gentry, Chris Gillin, Robert Haley, Arlene Hudson, Randy Hudspeth, David Janowsky, William Kane, Michael Kilpatrick, Katherine Murray Leisure, Oksana Lockridge, Brian Malkin, William McCain, Robert McPhail, Charles Millard, Claudia Miller, Edward Moldenhauer, Dee Morris, James Moss, John Ottenweller, Stephanie Padilla, James Patrick, Carey Pope, Joan Porter, Douglas Reichard, Richard Rettig, David Rhine, Elihu Richter, Kenneth Robinson, Thomas Tiedt, David Trump, and Dale Vesser. These individuals, however, bear no responsibility for any errors herein. We are also particularly indebted to the British, who declassified a host of documents and provided us access to them; this occurred late in the process of developing this document, and many more findings from these studies could have been included than were. Nonetheless, the studies led to important insights, some of which are reflected in the current pages.