Even a basic level of training is enough to know that when people are not meddling, populations in the natural world rise and fall in cycles, depending on factors that include food supply, weather and freak events. It would take a lot to convince me that killing wolves is the answer. I don't think we have enough information. I'd like to see alternatives such as a caribou breeding program debated. Equally importantly, I don't think we've sufficiently considered the ethics.
Wolves are social beings that live in close-knit packs.
The wolf cases show how we periodically get ourselves in a state about what predators are killing too much prey, what species is crowding out another. The trouble is, we're so bad at it. Worse, we almost invariably bungle so badly we create yet more problems. The list changes over time, but grows ever longer. Take the case of starlings, for example.