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Associated Press
FILE - In this June 15, 2011, file photo Environmental Protection Agency (EPA) Administrator Lisa Jackson testifies before the Senate Committee on Environment and Public Works regarding the Clean Air Act and Public Health on Capitol Hill in Washington. In response to a federal court order requiring the Obama administration to update air quality standards under the Clean Air Act the EPA is proposing new air quality standards to lower the amount of soot that can be released into the air. The long-delayed rule is to be made public on Friday, June 15, 2012.  (AP Photo/Charles Dharapak, File)

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