This is one of those bad bits of news that is good to know.

Fish are, in fact, swimming through the electric barrier in he Chicago Sanitary and Ship Canal. A new report by the U.S. Army Corps of Engineers finds that schools of fish swim through the electrical field and/or are transported through it the wake of passing barges.

The electric barrier has been the great hope in the ongoing and often contentious discussions about whether to separate Lake Michigan basin from the Mississippi Basin to keep Asian Carp from entering Lake Michigan.”

The story reported today in the Milwaukee Wisconsin Sentinel Journal says federal officials “stress they do not believe Asian carp are yet probing the barrier.

Read More: Fish swim past electric barrier meant to block Asian carp.