i check the state law im going to ... all of em are pretty much online.... also see if there is recipricty in said state for my ccw.

and its only due to the whole "ignorance of the law is not a solid defence"

i carry those questionable items in my checked bags. then once in the car i pull em out. once your in the parking lot your clear.... inside the airport your still kinda fair game. tsa wont help you with any info i know that first hand. dont assume they say its ok it really is.