As you all know, I just got my Concealed Carry Licence. At the class, the issue got brought up on how to handle a traffic stop or any encounter while carrying a concealed weapon. What was taught to me was to inform the officer that you are a permit holder and let then know that you are carrying. Not "I HAVE A GUN!!!!" That would freak anyone out!!!
While nosing around on the net I came across a video of an alternate way to handle a traffic stop or any instance where the officer asks for identification and you are carrying. This is great advice from one of the foremost authority's in personal protection and police work Massad Ayoob. Honestly it makes perfect sense.