U.S. Senators Mark Kirk and Dick Durban want federal investigators to take action against Asian carp in Illinois. The two sent a letter to the White House Council on Environmental Quality signed by several other senators from the Great Lakes region. The letter outlines why urgent action is needed to protect the Mississippi River basin and the Great Lakes. Asian carp is an invasive species outcompeting native fish for food and habitat in much of the mid-section of the United States.