Hello (last Tuesday) from the Capital One lounge at DFW. I look toward the wide expanse of windows to check for the impending thunderstorm, and my neighboring lounger, who is typing away next to me, looks up and says, “It’s for a training exercise.” My eye then catches the billowing black smoke, and I remember another Tuesday morning in this exact spot: for training purposes, a mocked-up plane at the southwest end of DFW is regularly set on fire, and then emergency teams wo
