The Great Culling: Our Water (2012) 2012, Documentary, United States The Great Culling: Our Water (2012) Duration: 1H32M Description: The film investigates the theory that the addition of fluoride to our drinking water is not as beneficial to dental health as originally thought, and may in fact be one of the causes of a cornucopia of neurological diseases that h….. Trailer ↗ United States 2012 Documentary