Veteran newscaster John Gibson hosts Fox News Channel's newest primetime show The Big Story with John Gibson Monday through Friday at 5 p.m. ET, with expert legal analysis from Judge Andrew Napolitano and reports from correspondent Heather Nauert.

Here's a preview of what's on the rundown for Monday, May 20:

Vice President Dick Cheney says that the chance of more Al Qaeda attacks against U.S. targets is "almost a certainty," and that the U.S. must prepare itself for all possibilities.

Other government sources tell FOX News that an increase in Al Qaeda activity has been detected and that there are indications that an attack of "equivalent magnitude" to the attacks of Sept. 11 is a possibility.

How strong is Usama bin Laden's terror network? Would its members really be able to pull off a large-scale attack? How can we protect ourselves? We'll discuss...

Plus — President Bush calls on Fidel Castro to "cast aside old and failed ideas" and return Cuba to the "community of democracies". 

Our Guests Include:

• Sen. Jon Kyl, R-Ariz.
Jay Carney of Time magazine
Clark McCauley, co-director of the Solomon Asch Center for Study of Enthnopolitical conflict at the University of Pennsylvania
Otto Reich, assistant secretary of state for Western Hemisphere affairs
Richard Dickerson, California assemblyman

This is also a time for you to participate. Gibson will be reading some of your emails on the air, so drop him a line at myword@foxnews.com.

Don't miss The Big Story with John Gibson ... weekdays at 5 p.m. ET.

Note: All guests and topics subject to change