Killinmg em is the answer, but how many can you kill?Its like swatting flys.Right now there is an issue in the supreme court about those fish, dont know exactly whats it about, dont really care, like I said I'm 73 yrs old, what ever the out come I probably wont be around to either benefit or suffer from it. If they get into the great lakes, in a number of years they will wipe out the native fish. Whats to stop them from gaining access to the TN river or the cumberland river? Commercial fishing could control them, but there is no marketing of them. These things jump like a tarpon, get to be good size, they even might have some sporting value.