FILE- This June 22, 2017, file photo provided by the Illinois Department of Natural Resources shows a silver carp that was caught in the Illinois Waterway below T.J. O'Brien Lock and Dam, approximately nine miles away from Lake Michigan. The Asian Carp Regional Coordinating Committee says an autopsy shows the 4-year-old male silver carp originated in the Illinois/Middle Mississippi watershed. That would suggest the carp somehow evaded three electric barriers 37 miles from the lake. (Illinois Department of Natural Resources via AP, File)
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