If we think of cities as organisms, their DNA is the hodgepodge of rules that shape development. Urban planner Emily Talen talks about how city zoning, coding and laws got started, and how they need to be changed to help us build more livable cities.
Take a look at a visual archive of city plans.
Conn Iggulden wrote "The Dangerous Book for Boys" with his brother, Hal. The idea is not to injure children but to help them have more fun.
David Anderegg is a Professor of Psychology at Bennington and the author of "Nerds: Who They Are and Why We Need More of Them." He tells Steve Paulson about his inspiration for writing the book.
Novelist Stephan Eirik Clark's Dangerous Idea? Subdivide the United States into smaller countries.
A few maverick physicists in the 1970s revived interest in quantum physics by exploring some of the deepest philosophical questions about reality.
After a quick look back at Neo-conservative Richard Perle's 2003 justification for war with Iraq, Steve Paulson talks with Douglas Feith about decision-making in the wake of 9/ll.
Dean King tells Jim Fleming about the ordeal of Captain James Riley and his crew. They lost their ship and were enslaved by desert nomads for months.
