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Securing the nation's rail and other surface transportation networks hearing before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Eleventh Congress, second session, April 21, 2010
- "Securing the nation's rail and other surface transportation networks hearing before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Eleventh Congress, second session, April 21, 2010"@en
- "Securing the nation's rail and other surface transportation networks : hearing before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Eleventh Congress, second session, April 21, 2010"@en