Chicago Storm Causes Widespread Highway Flooding

April 18 (Bloomberg) -- Heavy rain flooded and closed parts of three Chicago expressways and forced airlines to cancel more than 500 flights at O’Hare Airport, the nation’s second-busiest. A flash flood warning was issued at 7:55 a.m. local time for several counties because of “torrential downpours” that dumped an inch of rain in just 30 minutes, the National Weather Service said. Similar weather stretched down the Mississippi River and Lower Ohio valleys. (Source: Bloomberg)
Aetna to Buy Humana for $37 Billion
45:26 - Bloomberg's Francine Lacqua and Manus Cranny report on today's "Top Headlines." They speak on Bloomberg Television's "The Pulse." (Source: Bloomberg)
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