Billionaire donors Laura and John Arnold support far more in Maryland than police surveillance
The Baltimore Sun

Mounds of pet coke seen along Calumet River

Workers are handling coal and petroleum coke waste as a group of South Side environmental activists take a boat tour to see huge mounds of petroleum coke piling up along the Calumet River in Chicago on Sept. 9, 2013. (Zbigniew Bzdak, Chicago Tribune)
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