When & if a cancer cure ever develops, present indications are that it will be found among the more virulent poisons. Reason: only the deadliest artillery (e.g., poisonous radioactive materials, X rays) can kill a cancer cell. Out last week was the news that during World War II, U.S. cancer specialists had launched an uncommonly interesting study of the cancer-killing possibilities of mustard gas.
Mustard gas was a World War I terror. For World War II, chemists developed (but never used) a variation called "nitrogen mustard" (substituting nitrogen for sulphur). In studying defenses against the new product, they noticed that nitrogen mustard...