BAGHDAD, Iraq (AP) — Iraqi insurgents have shifted from attacking U.S. and other coalition forces to attacks on Iraqis who are working with the U.S.-led occupation, the chief administrator said Tuesday. "The security situation has changed," L. Paul Bremer III told reporters at a press conference with Gen. John Abizaid, the chief of the U.S. Central Command. "In the past attacks against the coalition were predominant. Now terrorist attacks against Iraqis are regular." Abizaid said there were some foreigners fighting with the insurgents but their numbers were small. He said the main threat facing U.S. and coalition forces came from...