I used to think the same thing about showing a military ID. I was on orders, so I handed the TSA guy my orders, ID and ticket, and he proceeded through my bag. Prior to the London drama, if you were on orders, you were not searched at the gate. Now the rule is (apparently) that you have to be in uniform and on orders to not be searched, and that presents a myriad of other issues, namely comfort while traveling. So I just grin and bear it for now, until they relax these latest restrictions again.

Garrett
_________________________
On occasion of every accident that befalls you, remember to turn to yourself and inquire what power you have for turning it to use. - Epictetus