In the Supreme Court case, PacifiCare Health Systems v. Book, PacifiCare and UnitedHealthcare contend that some doctors signed contracts agreeing to settle the dispute in arbitration. Many companies favor arbitration because it is usually "cheaper, faster and more predictable" than a trial, the AP/Inquirer reports ( AP/Philadelphia Inquirer, 10/16). CBS' " Evening News " Tuesday included a report on the suit (Rather, "CBS Evening News," CBS, 10/15). The full segment is available in RealPlayer online.