After Adelson came out of the Army, he and his brother Lenny packaged toiletries to be distributed by hotels and started a business called De-Ice-It, which sold a chemical spray to help clear frozen windshields.

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The airport itself points to problems with the fire safety system as the immediate cause of the delays: The fire safety system incorporates some 75, 000 sprinklers, but computer programming glitches mean it's not clear whether all of these sprinklers would spray enough water during a fire.

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Scores of police and state troopers, some in riot gear, tried to clear the streets, and some officers used pepper spray to disperse demonstrators.

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The stream showed clear and smooth-looking in the glasses and, below the curl of the falling water, the spray from the dam was blowing in the wind.

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