Out of sight, out of mind - but it's selective...
As a radio amateur, I have a decent-sized transmitting aerial in my garden.
Although I've done my best to minimise the visual impact, local folk know it's there as there's only a 4-foot fence between it and a public park with the footpath right alongside my garden.
People often ask what the aerial is and what I use it for, and I've never once had a negative response to my explanation.
People aren't afraid of radio waves, even at power levels 'considerably' in excess of those radiated by cellphone masts... there's something about the fact it's a phone mast that makes the difference - some of the very same people fascinated by my radio gear were up in arms about a cellphone mast planned nearby a while ago, so much so it was resited.
Couldn't be anything to do with the media's need to create a good scare to sell papers, could it?
Perish the thought...