Is circumcision a valid practice? Penn & Teller look at the various justifications behind the procedure and try to determine whether there exists a medical or social cause.
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Circumcision confers no health benefits: http://pediatrics.aappublications.org/content/early/2013/03/12/peds.2012-2896.abstract
Circumcision is comparable to female genital mutilation: http://www.ncbi.nlm.nih.gov/pubmed/17937251
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