Here's another unverified TSA horror story that made the rounds on the Internet last year. I first found the story on the L.A. Times website, and it was just copied from there a hundred times. Nobody's come up with any news report or documents from the timeframe when the incident was supposed to have taken place:

Zimerman has had problems in the United States in recent years. He travels with his own Steinway piano, which he has altered himself. But shortly after 9/11, the instrument was confiscated at JFK Airport when he landed in New York to give a recital at Carnegie Hall. "Thinking the glue smelled funny, the TSA decided to take no chances and destroyed the instrument."