Advances in cybertechnology, biotechnology and robotics mean that more people than ever before have access to potentially dangerous technologies.
Diane and her guests talk about the tragic loss of the Space Shuttle Columbia and its crew over the weekend, and about what the disaster may mean for the future of the space program.
- Alex Roland chair of the History Department at Duke University and former NASA historian
- Donna Shirley instructor of aeronautics engineering at the University of Oklahoma and former Mars exploration manager at NASA
- John Logsdon director, Space Policy Institute at George Washington University
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