In February 2013, Dr Paul Connett, a retired professor of toxicology and international expert on fluoride visited New Zealand and toured the country speaking on the fluoride issue. Key parts of his presentation included how exposure to high levels of fluoride can lower IQ.
If you missed his presentation, the footage is now online thanks to Vincent Eastwood of Guerilla News Media http://www.guerillamedia.co.nz/ who filmed his lecture in Auckland and has posted the footage at this link:
Readers who would like to help with the campaign to rid New Zealand of artificial water fluoridation should visit www.fannz.org.nz