A SERIOUS MISTAKE HUMAN SUBJECTS MACKLIN REPLIES Elisabeth Carpenter's article "Police Are Slow to Probe Attacks on Animal Labs" (December 14, 1987, p. 1), describes and il ustrates in vivid detail raids on laboratories by opponents of animal experimentation. We oppose destruction of property and have consistently sought to prevent mistreatment of animals through education and law enforcement. It is unfortunate that the article makes only a passing reference to the conditions that hav