Has anyone ever had issues with a backplate on carry-on making it through the security checkpoint? A few days ago in Cozumel, the gentleman at the security checkpoint said my single tank adapter (with cam bands attached) could be used as a weapon on the plane and it had to be checked. Thing is, once the bags are dropped, you cannot get access to put items inside. I had to end up allowing airport security to confiscate my adaptor. At least they allowed me to remove the cam bands and keep them.