This is a true story, and it wouldn't surprise me to hear a similar idea proposed in the near future to fight al Qaida...
The Sierra Club and the U.S. Forest Service were presenting an alternative to Wyoming Wool and Sheep Grower's Association for controlling the coyote population. It seems that after years of the ranchers using the tried and true methods of shooting and/or trapping the predators, the tree-huggers had a 'more humane' solution'.
What they proposed was for the animals to be captured alive, the males would then be castrated and let loose again. Therefore, the population would be controlled.
The ranchers thought about the proposal for a couple of minutes. Finally, an old boy in the back of the conference room stood up, tipped his hat back and said, 'Son, I don't think you understand our problem. Those coyotes ain't screwin' our sheep - they're eatin' 'em!'