And i'm sure there are signs somewhere that says what items will be confiscated if you try to take them through the checkpoint.
I can understand a person overlooking a firearm in a briefcase or purse as they plan for a trip. However, it seems like as they are standing in the line at the security checkpoint they would remember it was there and scoot out of line.
Also, I do understand the concept of personal property used in the commission of a crime being seized, but it still kind of bothers me. I suspect these folks are being charged with a misdemeanor and paying a fine, so taking the gun seems extreme. I think what bothers me the most is what kind of precedent does this set. Properly rights are very important in our society and we should take notice when they are threatened.