CNN Says It Overplayed Dean's Iowa Scream

Yahoo! News -- [ABC Executive] Slavin said his only regret was not airing an intriguing Diane Sawyer report on the coverage earlier. Sawyer reported that Dean was using a special microphone that night that filters out crowd noise to heighten his voice; other videotapes taken illustrate that his "scream" was barely audible to his live audience.

To Trippi, Sawyer's report felt like a Super Bowl referee admitting — after the game — that he blew a call that decided the outcome.

"Unfortunately, no one ran that 633 times," he said. "ABC, to its credit, did it once."

Only 39 percent of Dean's coverage on the network evening news was positive during the week after Iowa, according to an analysis by the Center for Media and Public Affairs. By contrast, rival John Edwards' coverage was 86 percent positive during the same period, and new front-runner John Kerry's was 71 percent positive, the center said.