PORTLAND, Ore. Feb 16, 2005 — Howard Dean, the new chairman of the Democratic National Committee, requested a media blackout of a debate with top Pentagon adviser Richard Perle, then quickly changed his mind Wednesday after news agencies complained. "DNC Chair Howard Dean has declared a news blackout of his appearance and requested the media not quote, record, and/or paraphrase his remarks," event coordinator Gabrielle Williams wrote in an e-mail sent to news agencies Wednesday morning. "We apologize for the late notice, but we were just informed of this request." Less than two hours later, Williams called to say: "We...