Topics and Guests for August 4

Weekdays at 3 p.m. in the East and high noon in the West!

The news begins anew with "Studio B"...

Aymen al-Zawahiri (search), Usama bin Laden's No. 2 man, threatens more attacks on London and the U.S. unless there is a complete troop withdrawal from Iraq. Is this a credible threat?

Then, the U.S. Military says roadside bombs that are killing our Marines are now strong enough to penetrate armored vehicles made especially for the Iraq war. So how can the U.S. Military defeat this? We'll get insight from retired U.S. Marine Lt. Col. Bill Cowan, FOX News military analyst.

And, MLB slugger Rafael Palmeiro (search) tests positive for steroids, just months after he testified under oath that he had never used steroids. Did he commit perjury? We'll get the legal lowdown from Judge Andrew Napolitano, FOX News' senior judicial analyst.

Plus, Congress passes a $286 billion transportation bill. But critics say that $24 billion of your tax dollars probably won't benefit you. So what are the billions of dollars going towards? Tom Schatz, president of Citizens Against Government Waste, weighs in.

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

About the Show

Join Shepard Smith every Monday through Friday at 3 p.m. ET for FOX News Channel's daytime show "Studio B."

We'll bring you the biggest stories of the day, including interviews with today's top newsmakers.

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Note: Topics subject to change