Today on "Special 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