Is it ethical to add fluoride in water?

[senatortombstone]

"Fluoridation is the most monstrously conceived and dangerous communist plot we have ever had to face...I can no longer sit back and allow Communist infiltration, Communist indoctrination, Communist subversion and the international Communist conspiracy to sap and impurify all of our precious bodily fluids."

Gen. Jack D. Ripper

I do't know if fluoride usage was actually communist infiltration.  I think they focused more on our colleges than water supply"