So, what is "contraband" according to TSA on a two hour private tour boat?
Do they confiscate your soda pop? Couldn't it just as likely be a liquid "bomb" on a boat as it is assumed to potentially be at the airport?
Are you asked to pitch your LEGAL jackknives into the water and take off your shoes? Did they become less dangerous at the dock than at the airport?

What will they do with the passengers in other states that DO issue Concealed Carry permits who are packing loaded guns LEGALLY on a private tour boat?

SO, now that we have established that they ARE NOT REALLY interested in stopping potential "threats" ARE THEY JUST THERE TO DEMAND A "PUBLIC DEMONSTRATION OF UNCONDITIONAL SURRENDER/SUBMISSION TO FEDERAL AUTHORITY" from each passenger AND "COP A FEEL" OF ALL THE BOOBS AND THE CROTCHES ON BOARD???