I’ve been a reporter for 30 years at CBS News, PBS, CNN and in local news. My producers and I have probed countless political, corporate, charitable and financial stories ranging from Iraq contract waste and fraud under Bush to green energy waste under Obama to consumer stories relating to the drug industry. Some of these reports have been recognized for excellence in journalism—most recently, investigative Emmy nominations and awards for reporting on TARP, Benghazi, green energy spending, Fast and Furious and a group of stories including an undercover investigation into Republican fundraising. But the job of getting at the truth...