I've just had a communique from the MU, saying its hammered out some new rules - presumably post 9/11 about instruments on planes.

Last time I went through an airport, they confiscated the pliers that I use for changing guitar strings. The guitar case was going into the hold - so I would not have had access to it on the flight.

How did my pliers constitue a danger?

Despite the letter from the Musicians Union, I'm still not sure of what the rules are. Has anybody got a clear idea?