Veteran newscaster John Gibson gets to the core of the most salient issues facing America today as host of FNC's hard-hitting primetime show The Big Story with John Gibson, airing Monday through Friday at 5 p.m. ET, with expert legal analysis from Judge Andrew Napolitano and in-depth field reports from correspondent Heather Nauert.

May 6:

Our troops in Iraq might never find Saddam Hussein's weapons of mass destruction...
Giora Shamus, editor in chief of debka.com

The war on terrorism certainly seems to be paying off. Al Qaeda hasn't launched any recent attacks, but there's still serious disagreement over the terror group's ability to resume operations
Jane Corbin, author of Al Qaeda: In Search of the Terror Network That Threatens the World

British PM Tony Blair is celebrating his 50th birthday. The affair is giving rise to inevitable reviews of his career and questions about his relationship with god.
David Margolick, interviewed Blair for Vanity Fair magazine

Some detainees at the Guantanamo Bay are going to be set free soon, or sent back to their own countries. What is going to happen with the terror suspects and the prisoners who turn out to be innocent?
• Judge Andrew Napolitano, FNC senior judicial analyst

A couple of republican senators are being called traitors to their party — even their nation — for refusing to back President Bush's tax cut
• Sen. Olympia Snowe, R-Maine

Be sure to tune into The Big Story with John Gibson ... weekdays at 5 p.m. ET.

Note: All guests and topics subject to change