Once again you are wrong in your statements. While there is no way of getting an accurate count, I have met several listeners who are blind.

You made an ignorant statement earlier when you asked "who will turn on their radio for them". You made an assumption that a blind person could not operate a radio, but you then made an assumption that they can work a tape recorder. If YOU had any care you would realize that there are devices that enable them to tune a radio, operate a taper recorder and so much more.   

I take it that you are more of a crank as opposed to someone with a legitmate point of view.