FILE - In this April 26, 2018, file image from video, smoke rises from the Husky Energy oil refinery after an explosion and fire at the plant in Superior, Wis. A federal agency reports the explosion at a Wisconsin refinery sent debris into an asphalt storage tank, triggering a massive fire that forced an evacuation last spring. The U.S. Chemical Safety Board released an update Thursday, Aug. 2, 2018 on the explosion and fire at the refinery in late April. (KSTP-TV via AP, File)
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