The memoir brouhaha continues to niggle at me — my hunch is that it’s gained such cultural traction because it’s a symptom of a larger problem that America is having with telling and recognizing the truth. In a year in which the American Dialect Society votes that “Truthiness” is the “word of the year” should it come as any surprise to us that we’re also beset by an avalanche of literary hoaxes? “Truthiness” the ADS website declares, “refers to the quality of preferring concepts or facts one wishes to be true, rather than concepts or facts known to be true.…