Why did Michigan order wolf killings?

From The Detroit News:

The government deemed a wolf pack so dangerous two years ago that a federal sharpshooter killed three endangered gray wolves, ostensibly to protect a family, in a rare use of that authority at a remote Upper Peninsula cattle farm. 

But now, some key participants say the wolves were actually shot to cut mounting financial losses to the farmer and the state after the predators killed nearly four dozen cows worth tens of thousands of dollars in one year.

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