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
U.S Marines are reportedly battling their way into the city of Nasiriya, Iraq. Three military experts join Diane to talk about U.S military strategy in the days ahead.
- Lt. Col. Kalev Sepp U.S. Army, Retired, analyst, The RAND Corporation
- William Arkin senior fellow at the Johns Hopkins School of Advanced International Studies and columnist for the "LA Times"
- Lt. Col. Ralph Peters U.S. Army, Retired and author of "Beyond Terror: Strategy in a Changing World" (Stackpole Books)
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