Kalb/O'Reilly Go 15 Rounds

Fox News commentator Bill O'Reilly and Marvin Kalb, host of "The Kalb Report," sparred over the news value of O'Reilly's show Saturday afternoon at NPC.

"It's a rough, tough industry, television news," O'Reilly said. "Now I'm expected to deliver enormous ratings. It makes it harder to do straight news."

He said if he puts himself up as someone who is challenging authority, "They're going to come back at you ... It's a raging war ... a thousand times harsher with the Internet."

O'Reilly said he now has to have bodyguards wherever he goes, and his Web site is often attacked. But in 13 years, he said, he has never had to retract a story or lost a lawsuit.