V 
Contents 
Letter of Transmittal to the President ix 
Members of The President’s Council on Bioethics xiii 
Council Staff and Consultants xv 
Preface xvii 
1 Introduction 1 
I. What Are Stem Cells, and Why Is There Contention 
About Them? 2 
II. Broader Ethical Issues 5 
III. Types of Stem Cells: An Introduction 7 
A. Embryonic Stem (ES) Cells 8 
B. Embryonic Germ (EG) Cells 9 
C. Adult (or Non-embryonic) Stem Cells 10 
D. Cord Blood Stem Cells 11 
IV. Terminology 11 
V. About THE Report 15 
Endnotes 20 
2 Current Federal Law and Poucy ' 21 
I. A Brief History of the Embryo Research Funding 
Debate 22 
II. The Present Policy 28 
III. Moral Foundation of the Policy 30 
IV. The Significance of Federal Funding 37 
V. Implementation of the Present Policy 41 
VI. Conclusion 47 
Endnotes 49 
PRE -PUBLICATION VERSION 
