According to the head of the security company at PDX, you have the abo****e right to be within view of all of your posessions at all times. If you choose to enforce this right, however, be prepared for harassment, delays and embarrassment, in the event you are the type to embarrassed by security agents pointing at you and screaming "SECURITY" and/or "SUPERVISOR" at the top of their lungs. ***sigh***

The good news is that since the F.A.A. has taken over, it would appear that they have made a serious effort to transmit this tidbit of security information to the working agents at the various airports I have passed through.