A Friday morning prayer service was rocked by a deadly car bomb that reportedly killed at least 75 people in the Iraqi city of Najaf (search), among them Ayatollah Mohammed Baqir al-Hakim, one of the region's most respected Shiite clerics.

Will the situation in Iraq get worse before it gets better? We’ll ask Phebe Marr, author of Modern History of Iraq.

Plus, if the task of rebuilding Iraq is getting more out of hand, is it time for America to lean hard on its allies to lend a hand? We’ll ask Charles Krauthammer, syndicated columnist and FOX News contributor.

He calls himself "Teekid" and on Friday Jeffrey Lee Parson was arrested and charged in connection with unleashing a costly and damaging computer virus. Just how damaging? Michael Kanellos, senior editor for C-Net, explains.

Forget 2008. Is Hillary Clinton about to enter the presidential race in 2004? We’ll get a fair and balanced debate from Susan Estrich, Democratic strategist and FOX News political analyst, and Ed Goeas, Republican strategist and CEO of the Tarrance Group.

We’ll take the market’s temperature with Rob Stein, managing partner at Astor Asset Management, and Tobin Smith, chairman of ChangeWave Research.

From low wages, to factories closing and moving overseas, labor unions face tough issues. Which candidate can tackle them and win their vote? We’ll investigate with Richard Trumpka, secretary-treasurer of the AFL-CIO on tonight’s edition of Your World with Cavuto.

Labor Day Special

September was the month the worst terrorist attack in history happened. Could this be the year a similar attack happens again? We’ll have complete coast-to-coast FOX Team coverage of what's being done to protect you.

Is enough being done to keep the homeland safe? We’ll have a fair and balanced debate with retired U.S. Army Col. David Hunt, FNC military analyst, and Peter Brookes, senior fellow at the Heritage Foundation.

How will TV networks commemorate Sept. 11 this year? We’ll get insight from Robert Lichter, co-director of the Center for Media and Public Affairs, and Robert Thompson, founding director of the Center for Study of Popular Television at Syracuse University.

If you think air travel is an absolute mess, who could blame you. But does it have to be? We’ll ask John Discala, founder of JohnnyJet.com founder, and Wendy Perrin, consumer news editor at Conde Nast Traveler magazine.

Should Congress force the American workforce to take vacations? We’ll ask Joe Robinson, author of Work to Live.

Plus, drop two sizes and double your bonus? Wait till you hear what companies are up to now.

And, we’ll preview the final four financial months of the year and how you can cash in on them with Jason Trennert, managing director of the ISI Group; Mike Norman, founder of the Economic Contrarian Update; David Tice, president of David Tice and Associates and manager of the Prudent Bear Fund, and Gretchen Morgenson, business editor of The New York Times.

About Your World...

More than just facts and figures, Your World with Cavuto gets to the heart of the matter with in-depth analysis from our FOX Business News All-Stars:

Terry Keenan, host of Cashin' In
Brenda Buttner, host of Bulls & Bears
David Asman, host of Forbes on Fox