The surest way to keep Asian carp from gaining a foothold in the Great Lakes is to cut the link between Lake Michigan and the Mississippi River Basin, the navigational locks at Chicago. That would protect the $ 7 billion Great Lakes fishing industry from the carp invasion. But it would not please the barge operators who move millions of tons of commodities on the Chicago-area waterways each year. So the Obama administration has come up with a $78.5 million plan that nobody likes: