by Joe Nathan, 6/5/08 • Several weeks ago I wrote a column with a serious mistake. The column discussed what I felt, and feel, is a major, mostly undiscussed problem in Minnesota – shockingly low graduation rates at many of our colleges and universities. There’s plenty of evidence on this that I’ll share later in the column. But my earlier column provided inaccurate information about St. Olaf College. For that, I apologize to you, the readers, St.Olaf, and to anyone who may have formed an opinion about that college, based on what I wrote.