Heather Zichal takes a question from the online audience
October 25, 2010 | 1:23 | Public Domain
Heather Zichal takes a question from the online audience about green energy and clean technology in the government.
February 23, 2011
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February 23, 2011
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February 23, 2011
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February 23, 2011
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February 23, 2011
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