That feeling is exacerbated when we keep hearing how the top one percent has managed to do increasingly well, with special tax breaks and special investment opportunities while many of us are experiencing flattened incomes or worse.

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Overall, nearly 700 people, or 13.2 percent of the sample, had noise-induced hearing loss in Djalilian's study.

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The documents were released as the Senate committee prepares for a hearing on the response to Katrina, which killed hundreds in the two states and left about 80 percent of New Orleans under water when portions of three levees failed.

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