Never forget

I was at lunch with a couple friends the other day.  One of them had just returned from a trip to New York City.

"I didn't do that much touristy stuff," she said.

"Did you go to Ground Zero?" my other friend asked.

"Yeah," the first friend said.

"Why?"  I asked.  "There's nothing there anymore."

They pretended not to hear me and continued discussing the trip.  I ordered a refill on fries.