Today on "Special Report":

Brian Wilson reports: Presidential candidate John Kerry (search) calls Republicans "crooked" and lying -- and refuses to apologize. We'll have the details.

GUEST PREVIEW: Neil Livingstone, terrorism expert and CEO of GlobalOptions (search), discusses the devastating situation in Madrid.

Wendell Goler reports: Federal Reserve Chairman Alan Greenspan (search) Thursday urged Americans not to turn high anxiety about U.S. job losses into support for protectionist trade measures, which could hurt rather than help the situation.

David Chater reports: Al Qaeda (search) is suspected in a terrorist attack in Spain that killed nearly 200 people and injured hundreds more.

Bret Baier reports: CIA Director George Tenet (search) gets grilled over pre-war intelligence. We'll have a full report.

Todd Connor reports: Another class of Iraqi defenders has graduated from training in Iraq. 

Simon Marks reports: A "who-dunnit" dispute in Russia pits two nations closely allied to the U.S.-led war on terror against each other.

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

— Guests and topics are subject to change