but ed meese was fighting in a way with james baker, but he also unilaterally stepped out of the fighting in that he said i'm not going to leak because looking against -- [inaudible] would not only hurt baker potentially, but also hurt the president. so sometimes people have kind of a higher sense of what they're trying to accomplish from the policy perspective, and they say i'm going to not necessarily are leak to advance myself, but i will do what i can to kind of help the administration by being silent and the -- [inaudible] so i think personality really drives it. you can't -- [inaudible] but then on the policy side, if you have strong disagreement about policy or the policy direction, you are going to have some fights. personality is a constant where policy is a variable. >> great. we have another question and, actually, i think certainly tevi should answer this, but maybe kiron will want to weigh in as well. this is from herbert, and the question is what are factors