The Justice Department said Wednesday that Saddam Hussein’s principal foreign intelligence agency and an Iraqi-American man had organized and paid for a 2002 visit to Iraq by three House Democrats whose trip was harshly criticized by colleagues at the time. The arrangements for the trip were described in the indictment of an Iraq-born former employee of a Detroit-area charity group who was charged Wednesday with accepting millions of dollars’ worth of Iraqi oil contracts in exchange for assisting the Iraqi spy agency in projects in the United States. The indictment did not claim any wrongdoing by the three lawmakers, whose...