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- Report
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Testimony before the Committee on Science, U.S. House of Representatives
- Report
- Report
Testimony before the Subcommittee on African Affairs, Committee on Foreign Relations, United States Senate
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Testimony before the Sucommittee on Trade, Committee on Ways and Means, U.S. House of Representatives
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Testimony before the Committee on the Budget, United States Senate
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Testimony before the Committee on the Budget, U.S. House of Representatives
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- Report