THE DOCTOR SETTLED back in his chair and chose his words carefully. “Identical twins tend to identify with each other, Mrs. Stanton. There is a great deal of empathy between people who are not only of the same age, but genetically identical. If they were both healthy, there would be very little trouble in their education at home or at school. Any of the standard texts on psychodynamics in education will show you the pitfalls to avoid when dealing with identical siblings. “But these boys are no longer identical. One is normal, healthy, and lively. The other is ... well, as you have seen, he is slow, sluggish, and badly co-ordinated. That condition may improve with time, but, until we know more about such damage than we do now, he will be an invalid.” “That’s the trouble with radiation dam