(NEWSER– Officials lack "conclusive evidence" that up to $700 million in federal aid following hurricanes Katrina and Rita was used appropriately, a federal investigation finds. Some of the 24,000 families who received up to $30,000 apiece to elevate their homes used the money for another purpose, while others failed to provide a full report of what they'd done with the cash, says the report, by HUD's inspector general.

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