Doppy,

a few problems, which can turn this into another long-winded security argument.

1. you are assuming that the potential hijacker is on a "list" already.

2. you are assuming that the potential hijacker is not smart enough to obtain a fake ID (available to most 19-year olds).

3. you are assuming that a potential hijacker isn't smart enough to buy a $30 ticket to gain access to the terminal.

I recently had to show my ID 3 times at Midway even BEFORE I got to the metal detector, then twice more at the gate. Why?