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.

Tuesday, Dec. 30:

What convinced the U.S. government to install international air marshals?
Rafi Ron, head of New Age Security Solutions

Attorney General John Ashcroft takes himself out of an investigation into who leaked the name of a CIA operative
Robert Ray, former independent counsel

Howard Dean says his fellow Democrats should stop attacking him in the name of party unity. Is he being a crybaby or does he have a point?
John McIntyre of Realclearpolitics.com
William McKenzie of the Dallas Morning News 

Ephedra is the first dietary supplement to be banned by the FDA
Tommy Thompson, Health and Human Services secretary

Questions about Michael Jackson's involvement with the Nation of Islam are popping up. Does the group try to latch on to celebrities?
John McWhorter, senior fellow in public policy at the Manhattan Institute

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

Topics and guests subject to change.