Bioengineers are creating human body parts to replace organs and manage life-threatening diseases. How techniques like 3-D printing and stem cell research are driving medical advances and raising ethical questions
A panel talks about the pre-emption doctrine – the Bush administration’s new emphasis on striking first to defend the U.S. – and what it means for U.S. security and foreign policy.
- James Steinberg Vice President and Director, Foreign Policy Studies, The Brookings Institution
- Ken Adelman former director of the U.S. Arms Control and Disarmament Agency and former U.N. Ambassador
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