I am safe on the plane now. On the way to Los Angeles International Airport this afternoon, I thought I was about to be murdered. In the run-up to a weeklong business trip, I called the car service I've been using for years to pick me up at my home. The driver arrived promptly at 1:30 p.m., the arranged time. The ride to the airport started out just fine. The driver began making small talk. I noticed he had a Jamaican flag on his dashboard, so I asked if he was Jamaican. He said he was, and he asked if...