Two months after lawmakers barely averted a government shutdown, the state is now facing another potential shutdown because of a labor dispute. About 30-thousand state employees vote this week on whether to walk off the job in mid-September. If members of the state's two largest public employee unions reject the state's latest contract offer, it would be the first state employee strike in twenty years - and the largest ever. Union representatives say a strike appears imminent, and state officials are preparing for the possibility. Minnesota Public Radio's Laura McCallum reports...