US customs officials think famous pianist's piano has funny smelling glue, so they destroy it

The Guardian's article about pianist Krystian Zimerman's political rant on Sunday at Disney Hall in Los Angeles (he announced that he'd no longer play in the US because of US military policies) contained this interesting tidbit:
At least some of his opprobrium appears to be personal. Shortly after 9/11, his piano was confiscated by customs officials at New York's JFK airport, who thought the glue smelled funny. They subsequently destroyed the instrument.
Polish pianist stops show with anti-US tirade