Sources familiar with the still-secret document say it harshly criticizes the CIA for faulty prewar judgments about Iraq’s WMD and ties to terrorism. One controversy examined by Senate investigators is the CIA’s claim that Saddam was buying aluminum tubes to use to make bomb-grade uranium. A congressional source said investigators found the CIA’s analysis “sloppy” and that key analysts were pushing a “point of view” rather than judging evidence objectively. Also in the congressional cross hairs: CIA assertions–amplified by Colin Powell in a speech to the U.N. that Saddam had built mobile biological-weapons labs. Even officials close to the CIA concede that two key sources Powell cited were dubious characters linked to controversial Iraqi pol Ahmad Chalabi. The veracity of two other sources cited by Powell has also been questioned, and Powell has expressed dismay that he was misled about their credibility.