So, I’m sitting around the Brownsville airport one day back before my beard turned grey waiting for a charter trip, and all of a sudden, the phone rings. It’s one of the administrators at Valley Regional Medical Center calling, telling me she’s got an air ambulance flight to San Antonio. So what’s wrong with the patient, I ask, always curious. “Just some sort of an infection,” she tells me in a nonchalant manner. “Are you going to send along a nurse?” I ask. “Oxygen?” “No,” she says. “I think the patient will be fine traveling alone.” Flying air ambulances, sometimes a nurse went along, sometimes ...