Like a lot of people in this country, after the September 11th terrorist attacks, I started asking, "what's next?" One of the first scenarios I thought of was some kind of violent act taking place at a crowded sporting event. For terrorism as I understood it, all the pieces were there. You have a large group of people concentrated in a tiny area, the event is probably being televised and the security measures would probably be easy to bypass. So, after dozens of MLB playoff games, Super Bowls, Daytona 500s and NBA finals passed without anything happening, my worries disappeared. Then, while driving home Monday afternoon, I heard on the radio that bombs had gone off at the finish of the Boston Marathon, and everything flooded back. "They," a blanket term for whoever was behind the bombings, had finally hit us at a sporting event (keep in mind, the bombing at the 1996 Summer Olympics in Atlanta predated Monday's attack by almost 17 years, but that happened in the pre-9/11 world).