Jill Carroll's captors appear to be involved in some of the most high-profile kidnappings of Westerners in Iraq during the past two years. A Monitor investigation - including interviews with other kidnap victims, US, Iraqi, and Italian investigators, as well as court testimony in Iraq - ties her abductors, or others close to them, to at least five kidnapping incidents, including Ms. Carroll: [...] The strongest evidence suggests that the same group that took Carroll also abducted Ms. Sgrena, the Italian journalist. In early March, Abu Rasha, the leader of one of the three cells handling Carroll's kidnapping, went into...