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CNET News Video: Green Mile: A look inside tomorrow's catalytic converter

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CNET News Video: Green Mile: A look inside tomorrow's catalytic converter

3:10 /

The catalytic converter is the unseen, unsung hero of auto emissions control. Does the old "soot can" have a high-tech story? Check out what CNET's Brian Cooley and Michael Kanellos learned from visiting Nanostellar, a company that replaces particles in a catalytic converter so a car can run greener.

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