Unlike Glenn, the Huffington Post is evidently not a student of history — nor fond of research, for that matter. Rather than publish with journalistic integrity, HuffPo decided to throw caution to the wind and publish an unsubstantiated hit piecequestioning the authenticity of a book Glenn owns and has taken along on the campaign trail.The book in question is George Washington’s volume of Don Quixote. The hit piece, titled “Mount Vernon Says It Owns George Washington’s Copy Of Don Quixote, Not Glenn Beck,†was published yesterday. “The Huffington Post wrote a story, and it says,you know, Glenn Beck’s people...