University of Wisconsin-Madison student Marisa Weich contends with sub-zero wind chill temperatures while making her way to class on the campus Tuesday, Jan. 22, 2013. (AP Photo/Wisconsin State ... more 
University of Wisconsin-Madison student Marisa Weich contends with sub-zero wind chill temperatures while making her way to class on the campus Tuesday, Jan. 22, 2013. (AP Photo/Wisconsin State Journal, John Hart) less 
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Associated Press | Photo By Wisconsin State Journal, John Hart
Tue, Jan 22, 2013 3:52 PM EST