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The controversy over tenure

The practice of tenure in academia has both pros and cons.
Perhaps it's no coincidence that "tenuous" comes just before "tenure" in the dictionary — in recent years, the practice of granting faculty members what usually amounts to lifetime job security has come under fire. Initially intended to ensure scholars would have the freedom to pursue research or espouse ideas that may be unpopular or heretical, tenure has been criticized for doing the opposite. In the October issue of Astronomy, profile subject David Helfand, chairman (sans tenure) of the...

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