Life is beset with hazards. We all recognize some of them and we do not fear them unreasonably. Sensible people are aware that appreciation of what constitutes danger and what precautions will make an otherwise dangerous proceeding safe offers a greater measure of security than the attempt to eliminate all sources of danger. Many of our most healthful sports contain the elements of deadly danger, yet we do not forego them. We recognize that training in the technic of safe performance of dangerous feats is the best kind of preparation for a long and happy life.
This preamble is intended to indicate that it is not my intention to create a feeling of insecurity or to recommend any sweeping changes in our practices. This communication is written because a hazard exists which has caused the loss of a small number of lives, a number which would be insignificant except that