My last letter questioned the wisdom of our financially destitute government granting federal permits to Deepwater Wind Company to build five huge wind farm generators near Block Island for various reasons ("Keep wind farms from Block Island" on June 6).

My concern has been strengthened after receiving the April 2012 copy of Acoustic Today, a publication of The Acoustic Society of America.

It has a timely relevant technical article titled "Wind Turbines....The Effects of Infrasonics on The Human Auditory System," by Annie Chen and Peter Narins, UCLA specialist in Neuroscience & Ecology & Bio-Acoustics. These specialized trained scientists have concluded that low frequency noises in the 19 Hz range of the intensity typical of windmill generators can have psychosomatic adverse effects on humans, such as depression, anxiety, irritability, insomnia and psychosis.

Politically important and well funded greenhouse windmill generators may have limited effective use in America, but first their impact on man and animals, such as birds and bats, should be determined.