Tragic news from the world of media and politics today:

Tim Russert, the Washington Bureau Chief for NBC News and long-time moderator of Meet the Press, passed away today. The 58-year-old died of a heart attack.

Tom Brokaw reports that Russert collapsed at NBC News in Washington while managing audio footage. He is survived by wife Maureen and son Luke.

Tim Russert: May 7, 1950 - June 13, 2008.