Actually I would be implying, you would be inferring. ; )

And you missed the "...as opposed to..." I was pointing out the only time you can, in fact -must-, use a lock for which only you have the key is when you have a checked firearm in your luggage. 

Which is why some folks checking expensive or irreplaceable items check a flare gun, it lets them use their own lock -rather than- a TSA lock for which keys are available to any yahoo.