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
The trailblazing NBC correspondent reflects on her career in journalism and offers a behind-the-scenes look at powerful Washington politicos, including her husband, Federal Reserve chairman, Alan Greenspan.
- Andrea Mitchell chief foreign affairs correspondent for NBC and author of "Talking Back."
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