This antiquated film clip demonstrates that our government has known for a very long time that sodium fluoride, even in weak concentrations, is damaging and destructive to cellular tissue.<br /><br />Sodium Fluoride and Cell Growth<br />British Medical Journal - Oct. 26, 1963 - Roger J. Berry and W. Trillwood<br />http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1873187/pdf/brmedj02521-0089f.pdf<br /><br />Effects of Fluoride on Cells and Tissue in Culture, A Review : by Roger J. Berry, Oxford, England<br />http://www.fluorideresearch.org/023/files/FJ1969_v02_n3_p157-167.pdf<br /><br />Fluoridation Falsified : Hugh Sinclair - 1964 February 29; 1(5382): 554, 555.<br />http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1813571/?page=1<br /><br />Reference at 4:12 minute mark<br />The Honorable James J. Delaney of New York<br />http://library.albany.edu/speccoll/findaids/apap241.htm<br /><br />NEXUS MAGAZINE: THE GREATEST "SCIENTIFIC" FLUORIDE FRAUD YET?<br />http://www.nofluoride.com/nexus_article.cfm