Susan Estrich, the USC law professor who ran the presidential campaign of Michael Dukakis, has an intriguing column out about newspaper op-ed pages. Nine out of 10 op-ed items are written by men, and the paper's political leanings don't change the ratio, her students found. Estrich writes: "It doesn't matter whether it's the Los Angeles Times or the Orange County Register; it doesn't even seem to matter whether the opinion page editor is a woman or a man."