"Teach your interns the role of journalists is to question power, not propagate it." That advice arrived recently from retired New York Times columnist Tom Wicker. While Mr. Wicker's words are important for my journalism students, they're a timely reminder for the Baby Boom leaders of America's newsrooms — who should have learned more than they did in the '60s, when the best and the brightest gave us Vietnam. The most influential interpreters of our public affairs are accepting, rather than expanding, a noose-tight frame the Washington political culture is enforcing to limit permissible discourse on the war in Iraq....