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University of Michigan professor Arthur Kuo's research team has created a new knee brace that stores the residual energy a person makes while walking. They report that walking for one minute can generate enough energy to power the average cell phone for 10 minutes. Andrea Seabrook speaks with Kuo.

My & time in law school, after two overseas tours and spending four out of five years out of the country, & was also when I began to realize just how much modern America had let big government intrude into people's lives with incentives and penalties all hinging on acceptance of one family & model as being the only acceptable family unit. &

Many of the continent's architectural gems have been around for centuries. But experts warn that some could be severely damaged by pollution, flooding and changing humidity levels.

As an architect of the Iraq war, Paul Wolfowitz has been a lightning rod for critics. Supporters see the embattled World Bank president as a principled defender of democracy. Critics say he's a hawk obsessed with solving the world's ills through military might.

Republican gubernatorial candidates Meg Whitman and Steve Poizner discuss their qualifications to run California in a statewide debate hosted by the California Report.

Leonid Hurwicz of the University of Minnesota, Eric Maskin of Princeton and Roger Myerson of the University of Chicago share the prize. They were honored for laying the foundation of mechanism design theory.

Straight from the Big CON!

Best known for her 1962 novel The Golden Notebook, Lessing's life work spans more than a half century. The British author is the 11th woman and the oldest writer to win the Nobel literature award.

Last month, the two main parties in Pakistan's new coalition government agreed to introduce a parliamentary resolution reinstating the senior judges sacked by President Pervez Musharraf within 30 days of forming a government. Musharraf's enemies say once the judges are back, they'll declare his recent re-election as president as illegal. Wednesday is the deadline to reinstate the judges.

Why did Fidel Castro turn over power of Cuba to his brother Raul? What does the future hold for the island nation ruled by Castro for the past 47 years?