• In the item on circumcision “To snip or not to snip” (25 November 2006, p 9), we cited the incidence of penile cancer as being 1 per 100,000 US males, but omitted to mention this was per year.
• Our email address letters letters@newscientist.com has been working, at best, sporadically – sorry. Try NS.letters@rbi.co.uk
