If you call cigarettes cancer sticks, then these must be called cancer poles. Someone from our client's office was driving me to our office in Melbourne and he told me that these high-tension power cables cause cancer. I thought how utterly rubbish it was but then I realized that he is not the only one to say so. There have been studies to suggest that they do cause cancer and there have been studies to suggest they don't pose any threat to health. So far it has not been conclusively decided that these do or do not cause cancer.