Today on Special Report...

GUEST PREVIEW: David Yepsen, columnist for the Des Moines Register, weighs in on the latest Pew Center polls showing Democratic presidential candidate Howard Dean as the frontrunner.

Jim Angle reports: President Bush (search) signs a comprehensive reform bill that will overhaul the Medicare (search) system.

Bret Baier reports: We'll have the latest news out of Iraq and Afghanistan.

Steve Centanni reports: An exclusive look at the green zone -- where coalition authorities and Iraqis live side by side.

Carl Cameron reports: Is Democratic hopeful Sen. John Kerry (search) preparing to concede New Hampshire to Howard Dean.

Major Garrett reports: We'll have the details about the Omnibus spending bill heading through the House.

Simon Marks reports: Live from Moscow -- We'll get the results and the fallout from Sunday's elections.

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

— Guests and topics are subject to change