"I wanted to know what went on -what really went on - inside  Viacom/CBS... about the collaboration between very big business and very big  government." So says television legend Dan Rather in this  special edition of The Debriefer. "I knew that a lot had gone on behind  the scenes [in CBS News] that wasn't right. As a reporter, I tried to dig into  that story."

The scandal that Dan and his team at CBS had unearthed concerned no less a  person than George W. Bush, the 43rd President of the United States. At the time  of the Viet Nam war, Bush's father had used his influence to get him a posting  in the Texas Air National Guard, thus ensuing he would never risk active service  in the battlefield. "That's a fact", says Dan. "The president didn't deny it:  he's never denied it."

Even more scandalously, after being posted to this "champagne unit" for the  sons of privileged and well-connected people, Bush countermanded orders and  disappeared for a year! "[Those facts] were true when we reported them", says  Dan. "And they're true now."

Listen to this Debriefer special as Dan tells us what happened next to him  and his team: it will shock you. If you enjoyed this show, buy Dan's new book,  Rather  Outspoken: My Life in the News, just out from Grand Central  Publishing.