Today on "Special Report":

Battle continues in Najaf (search) against militiamen loyal to radical cleric Muqtada al-Sadr (search). We'll have the latest.

Jim Angle reports: Paul Bremer (search) and Colin Powell (search) say U.S. troops would leave Iraq if asked. We'll have a full report.

Major Garrett reports: A fourth soldier is charged after Abu Ghraib (search) prisoner abuse scandal. Get details.

Steve Centanni reports: Police union that backed President Bush's 2000 bid throw their support behind Dem candidate. We'll report.

Jonathan Hunt reports: Cities gear up for potential terror threats facing this summer's GOP, Dem conventions.

Details on those stories and more on Special Report with Brit Hume at 6 p.m. ET.

— Guests and topics are subject to change