[Tactical Jackalope]

All the gun shows I have been to in my area have had armed security both inside and outside the bldg. If you request they will even escort you to your vehicle. You can have a CCW but you have to unload it when you enter, they have a bullet proof enclosure to point the gun in while you unload it. Then they put a lock tie on it and remove it when you leave, you can load it again as soon as you step out of the bldg before walking to your vehicle. Myself I prefer this to leaving my gun locked in my vehicle.

This.

In my area we have armed LEO walking about inside and outside. In uniform and in patrol cars out front.