Years ago, a veteran, respected journalist called me out on a piece of news copy I wrote. My sin: Rather than indicating that someone said something, I wrote that they believed something. My colleague corrected me. REPORTER’S NOTEBOOK: BACKLASH IN THE HALLS OF CONGRESS “We know what they say. But we can’t know what they believe,” counseled my friend. I changed the copy. No journalist is clairvoyant. But...