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On today's edition of "MarketFoolery," the new daily podcast from The Motley Fool, we dig into the following topics:

Japan raises the severity rating of its nuclear crisis, matching the Chernobyl disaster of 1986. How should investors evaluate companies in the region?

Cisco Systems (Nasdaq: CSCO) announced the layoff of hundreds of employees as the company cut several consumer businesses. As the stock continues to languish, should longtime CEO John Chambers consider stepping down?

Cameron and Tyler Winklevoss sued Mark Zuckerberg, claiming he stole their idea for Facebook, and eventually settled out of court. Now a panel of federal judges has ruled against the Winklevoss twins' new lawsuit, forcing them to get by on a paltry $160 million. Our analysts share their reactions and offer some investment ideas for the poor Winklevi.

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