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Congress grills Medicare head as some insurance holders get cancellation notices
Poet Billy Collins discusses humor, authenticity and 'Aimless Love'
Rep. Sensenbrenner: Mass data collection makes it harder to prevent attacks
What the lowlands can teach the U.S. about warding off high water
Will polio outbreak inspire international community to do more about Syria?
The Netherland's iconic windmills were once the height of flood control technology.
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