Originally Posted by
AGBagb
As DFW is my home airport, I never have to make a connection here - but I'm pretty sure that you can change terminals without leaving airside
I'm not sure that's true. Certainly at Houston, after you get through customs you are then beyond security, and there is no "transit" corridor that avoids returning through security. My recollection last time at DFW was the same.
Their argument is that now you had access to your stuff, and you might try to reboard the plane with a full bottle of water.