Topics and Guests, April 21

Today on "Special Report":

Car bombs targeting police stations and a police academy detonated during morning rush hour in Basra (search), killing 68 people, including 10 schoolchildren, and wounding at least 238 others. We'll have a full report.

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

— Guests and topics are subject to change