As much as open carry is a right in many states, it is not meant to be abused. Carrying an ar to the airport-dumb. I’ve carried in airports, picking up people etc, concealed. In my state a long gun is not covered by a carry permit-at least not loaded. So, you are carrying an empty long gun, what’s the point there?
If carrying an AR-15 at an airport is a lawful right then someone has to exercise that right or else it isn’t a right at all.
Besides, if Muslims can carry weapons at airports then it makes sense for Christians and Jews to do the same.
http://en.wikipedia.org/wiki/2002_Los_Angeles_International_Airport_shooting