If one of the media's favorite "independent" disaster experts looks familiar as he bashes and trashes the Bush administration for bungling the response to Hurricane Katrina, that's because he is. Since Katrina devastated New Orleans nearly a month ago, Dr. Irwin Redlener, head of something called the National Center for Disaster Preparedness, has been the subject of nearly two dozen TV interviews and media reports, including appearances on NBC's "Today Show," ABC's "World News Tonight" and "Prime Time Live" - as well as several pitstops at CNN in between. And despite his "nonpartisan" credentials as a pediatric expert at Columbia...