Tens of millions of Americans take nutritional supplements. New studies allege some pills do not contain what is on the label. Other research indicates consumers may be ingesting too many vitamins. New concerns about dietary supplements.
How our increasingly mobile, multi-tasking and virtual world may be eroding our willingness and ability to grapple with complex issues, and what this trend could mean for the strength of our democracy.
- Rick Shenkman history professor, editor and founder of George Mason University's History News Network, investigative reporter and author of "Just How Stupid Are We? Facing the Truth About the American Voter" (Basic Books)
- Maggie Jackson journalist, author of a new book titled, "Distracted: The Erosion of Attention and the Coming Dark Age" (Prometheus Books) and author of the "Balancing Acts" column in the Boston Globe.
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