Topics and Guests for April 21

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. Become part of the mix and get your voice heard... drop us an email at

Topics and Guests:

• Five simultaneous homicide bombings blast the southern Iraqi city of Basrah (search) in the bloodiest attacks to hit the city since major combat operations ended. Was it the work of Al Qaeda (search)?

We'll have live Team Fox coverage of the War on Terror with James Rosen at the White House and national security correspondent Bret Baier at the Pentagon.

• FBI director issues a stern warning to terrorists thinking of attacking the U.S. — So just how prepared are we? How secure is the homeland?

We'll ask Rep. David Dreier, R-Calif., a member of the Select Committee on Homeland Security.

• Several deadly tornadoes rip through parts of Illinois and Indiana — We'll have the details.

• Alan Greenspan (search) comments on the economy — How will what he said affect your wallet?

We'll get a full report from FNC business correspondent Terry Keenan.

• FNC has been following the story for months — Now the United Nations (search) is opening its own investigation into the alleged abuse of the Oil-for-Food program.

FNC's Eric Shawn will be LIVE at U.N. headquarters with more.

All of this... and more on Studio B With Shepard Smith at 3 p.m. ET.

Note: Topics subject to change