Aircraft security or insecurity?

The local news had a segment tonight on a convention of aircraft and small aviation company types (charters, general aviation etc.). One of the self-anointed experts who talked to the media gave the usual "I'd tell you but 'they might be listening'" kind of answer about the security topics they were covering. Now which is more likely - that a potential terrorist is attending the convention or that a potential terrorist is watching the local news in a relatively small market hoping to get some pointers. Gee, I feel so much safer now.