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Learn how the Ocean Discovery Institute is connecting urban youth with science and the environment.

Vaccines prevent disease and save countless lives. But all vaccines pose some risks. We'll talk with scientists about how they balance safest and effectiveness when it comes to vaccines.

Cutting down forests in the Amazon destroys a natural means of absorbing carbon dioxide. But new roads in the jungle also create new pools of standing water — ideal breeding grounds for malaria-carrying mosquitoes.

In a bit of Wall Street irony, an investment giant that has made billions by taking companies private has gone public. Blackstone Group's initial public offering of stock raised more than $4 billion --- along with some concerns among lawmakers. Linda Wertheimer talks with Joe Nocera of the New York Times.

A Blogger Responds to the President

The View from Kafka's Head

Where do stem cells come from? And, what can they be used for? We speak to the co-author of the new book, Stem Cells For Dummies.

The Internet is transforming the economy and the culture. Is it for the best? Andrew Keen, author of The Cult of the Amateur: How Today's Internet is Killing Our Culture says the consequences of the digital age need to be managed.

Before there was Bernie Madoff, there was Ivar Kreuger, the man John Kenneth Galbraith called the Leonardo of scammers. When Kreuger, an extremely successful and much-admired businessman during the 1920s, killed himself in 1932, investors discovered that his financial empire, based in the manufacture of matches, was made of sand, built out of complex financial instruments that are the forerunners of today's derivatives.

There are some nicely wrapped cinematic gifts as well as expensive coal in area theaters this holiday season. We'll ask our critics about the new Coen brothers movie "True Grit," see how "Tron" stacks up as a sequel, and find out if the hype is deserved for "The King's Speech."