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British police are on guard after warnings that another team of suicide bombers (search) is plotting a third attack on the city. So is the beefed up security just a "show of force" to discourage attackers or are authorities responding to a specific threat? Robert Ayers, homeland security and intelligence expert, weighs in.

Then, one of the London terror suspects allegedly made a phone call to Saudi Arabia just hours before his arrest. Another suspect told friends that he went there for several months for a "training course." So how does Saudi Arabia — home to Usama bin Laden and 15 of the 19 9/11 hijackers — tie in? We'll get insight from Mamoun Fandy, author of "Saudi Arabia and the Politics of Dissent" and a senior fellow at the Baker Institute.

President Bush bypasses Congress and appoints John Bolton (search) to be the next U.S. ambassador to the United Nations. Will Bolton get tough on the U.N. when it comes to fighting the global War on Terror? We'll ask Frank Gaffney, former assistant secretary of defense, and Lee Wolosky, former director for transnational threats on the National Security Council under former presidents Clinton and George H. W. Bush.

And, should we be politically correct i.e. not use racial profiling when fighting the War on Terror? Bill Gavin, former assistant acting director of the New York FBI, weighs in.

Plus, is racial profiling legislation legal? We'll get the lowdown from Judge Andrew Napolitano, FOX News' senior judicial analyst.

Real journalism: fair and balanced. That's why we're No. 1 — FOX News Channel.

About the Show

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, "The Big Story" gives you expert legal analysis from Judge Andrew Napolitano.

"The Big Story with John Gibson" is one of the reasons that FOX News Channel is the most watched news network in daytime.

Note: All guests and topics subject to change