USA - Must be a convincing speaker.

The fluoridation of Del Rio’s drinking water has came to an end after city council viewed a presentation put together by retired biology professor John Morony at city council’s Tuesday night meeting.

In a letter addressed to Mayor Efrain Valdez and members of the city council, Morony stated “currently we are using an industrial grade of silicoflouride, a waste product of the phosphate fertilizer industry, to increase the fluoride content of our drinking water.”
(L-R) John Morony and Ronald Burton are pictured seated at Tuesday night’s city council meeting. The pair made a presentation that led to the unanimous vote of the city council to immediately cease the fluoridation of Del Rio’s drinking water