For example, earlier this year the University of Minnesota found that charters in the twin cities of Minneapolis-St Paul lagged behind public elementary schools, ranking 7.5% lower for maths and 4.4% lower for reading.

ECONOMIST: Education

Despite the dozen or so marathons he's completed, including the Chicago Marathon on Sunday in Illinois and the recent Twin Cities Marathon in Minneapolis, Minnesota, Lund's insecurities have stuck with him into adulthood.

CNN: Weight losers combat fear of exercise, schoolyard torment