I’m walking through Millennium Park in Chicago. There are many visitors around, and in parts of the park, prep work is underway for the NASCAR race this weekend.

I'm on a sidewalk near the Pritzker Pavilion. Oddly, there's not another person in eyesight, ahead or behind me. Chalk that up to it being a weekday mid-morning.

Ahead, I spot a backpack on a park bench. The backpack is overstuffed, and sitting upright, as if it has been carefully placed. I look around more carefully, and I'm all alone. "Hmm, that's weird," I think and keep walking.

At the end of the walk, there happens to be a Chicago Police SUV. Two officers are inside. I approach, and through the open window I tell one of them about the unattended bag. She says, "OK, thanks" as if I had interrupted her telling a story about some perp she beat up. I laugh slightly and add, "Well, if you see something, say something, right?" She replies flatly, this time not even looking at me, "OK, thanks."

As I walked away, I realized that if it turns out to be a bomb. I'll be the primary "person of interest." At the end of the block, I glance back at the patrol vehicle. Both cops are still sitting inside.

Update: It apparently wasn’t a bomb. At least not one that exploded.