Last week, campuses throughout the Midwest shut down due to dangerously cold weather, but the University of Michigan remained open -- to the frustration of many of its employees and students. Now the university says it is reviewing its procedures for closing during bad weather, MLive.com  reported. Provost Martha Pollack told a faculty committee that one reason the university didn't close last week was the lack of procedures to do so. "We didn't have the appropriate mechanisms, even if we wanted to close the university," she said. "That said, after this was all over, I and some of the other executive officers really strongly believe that we ... need to revisit this policy." The university last closed for weather-related reasons in 1978.