Headline News is hoping to capture lightning in a bottle again, with a second "Exposed" special by Glenn Beck.

His first special, about "The Extremist Agenda" last November, brought Beck "his best ratings ever." He had "the #1 cable show in the demo for the night."

CNN is running another big ad campaign for "Exposed." The ad in the upper right is running on Drudge. "Climate of Fear" premieres Wednesday at 7pm.

It "aims to deflate what Beck perceives as the media hype surrounding global warming and to ask questions about the causes of a warmer planet and possible solutions," the release says...