http://www.insidehighered.com/sites/default/server_files/styles/blog_landing/public/JustVisitingLogo_white.jpg?itok=K5uvzo_-By John Warner. I was last on the Duke University campus 31 years 11 months ago, when I was visiting my older brother during my high school spring break, which happened to coincide with my 16th birthday and my brother’s 20th. More...