Crazy, Crazy Love: In the wake of the crazed astronaut story, many people are calling for better "psychological screening" at NASA. But that puts too much confidence in the power of psychology. It isn't an exact science. Unless someone has an obvious personality disorder or a past psychiatric history, it's impossible to predict how they'll react to any given situation. Especially love:But in the end, he adds, predicting any kind of romantic behaviour is very difficult. Perhaps the only thing...