How do the producers defend themselves against the avalanche of criticism? It's so, so typical. On the "Today" show, Jacobovici and Cameron -- the "Titanic" director -- finally were pressed to respond to critics like Zias. They quickly fell back on the laughable concept that they weren't -- surprise! -- experts. Both said they weren't archaeologists. One insisted he was filmmaker, the other a journalist. Cameron found it "compelling" as a layman.

In other words, neither has credibility -- and neither does the nonfiction Discovery Channel.

When it comes to ancient Christian sites, the Discovery Channel already had a huge credibility problem on its hands. Discovery aired a 2002 special on the alleged "Ossuary of James," which was declared a forgery in 2003 by the Israel Antiquities Authority. Its promoter, Oded Golan, is currently on trial for forging part of the inscription. Jacobovici produced that badly flawed documentary, too.

The Discovery Channel, like most of the national TV elite, displays a dramatic bias in target selection when it comes to religion. There are no controversies over the historical claims of Islam, Judaism or any other religious faith. But Christianity is another story. It is routinely the subject of sensationalistic TV exposes, complete with breathless claims about how Jesus "might be" the son of a Roman soldier, or he might have survived the Crucifixion. And now he's a dad, with kids.

What's worse is that these shoddy alleged exposes always air in the most sacred Christian seasons, like Lent. Last year during Lent, on April 2, 2006, "Dateline NBC" offered part of its show to alleged Jesus-debunker Michael Baigent, even as reporter Sara James declared: "Baigent acknowledges there's no proof of his theory, but points out that it was possible to survive crucifixion."

If the Discovery Channel fails to cancel this slanderous 'documentary,' it will have to explain why it is intentionally misleading the public. This network should be embarrassed by this plunge into sensational speculation masquerading as 'science.' To slander Christianity at the start of the Lenten season is unconscionable. This isn't news. It's sensationalism on a stick. Or in this case, on a cross.