Dawn Schnetzer, a 17-year-old Menasha girl, was last seen in September 1978 in Menasha and several weeks later turned up dead in a wooded area in Calumet County. (July 2013) Wm. Glasheen/Post-Crescent Media
The overwhelming majority of U.S. school districts — urban, suburban and rural — experience some degree of chronic absenteeism that puts students at academic risk, according to a study released Tuesday.