'Underground Class' by Northwestern Prof on Leave

David Protess, a legendary Northwestern University journalism professor known for his efforts to show the innocence of wrongly accused prisoners, is on leave from the university, amid investigations that he lied to the university about his conduct. But The Chicago Tribune reported that he has both signed an agreement not to return to teaching and that he started teaching an "underground class" to students. According to the Tribune, reports are surfacing that he told students to lie about their identities in some past class investigations -- a tactic he says is justified in some cases, but that others question.