The answer is not to expand Lies My Teacher Told Me to cover every distortion and error in history as traditionally taught, to say nothing of the future lies yet to be developed. That approach would make me the arbitrator - I who surely still unknowingly accept all manner of hoary legends as historical fact. Instead, the answer is for all of us to become, in Postman and Weingartner's vulgar term, 'crap detectors' - independent learners who can sift through arguments and evidence and make reasoned judgements. Then we will have learned how to learn, as Postman and Weingartner put it, and neither a one-sided textbook nor a one-sided critique of textbooks will be able to confuse us.