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| web | Sharon Lerner, Lee Fang | The Intercept | 2021-06-09 |
| web | Lee Fang | The Intercept | 2020-01-18 |
| web | John Vidal | The Guardian | 2018-06-05 |
| web | Lorraine Chow | EcoWatch | 2016-09-16 |
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| web | Scott Higham, Lenny Bernstein | Washington Post | 2017-10-15 |
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| web | Kevin Vaughan | Rocky Mountain News | 2008-05-12 |
| web | Jonathan Weisman | Washington Post | 2005-11-30 |
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| web | Lisa Girion | Reuters | 2018-12-14 |
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| web | Scott Higham, Lenny Bernstein | Washington Post | 2017-10-15 |
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| web | Sharon Lerner | The Conversation | 2021-10-05 |
| web | Kevin Vaughan | Rocky Mountain News | 2008-05-12 |
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| web | Anna Edney | Bloomberg | 2021-03-05 |
| web | Sam Meredith | CNBC | 2020-11-09 |
| web | Deena Beasley | Reuters | 2016-01-08 |
| web | Devlin Barrett | Associated Press | 2009-09-02 |
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