Exactly.
Last year, a solder put an inert training grenade in his luggage. How is a relatively untrained baggage handler or security worker supposed to know that it's a dummy grenade?
Back in 1991, A LOT of soldiers were caught with contraband, including unexploded cluster munitions and other weapons.
Yep ... I even carried contraband home inadvertently .... 14.5 mm machine gun rounds
"Back in 1991, A LOT of soldiers were caught with contraband, including unexploded cluster munitions and other weapons."
That screening is done WWAAAYYY up front, in Iraq, by enlisted customs personnel who are much toughter than any TSA weener would ever think of being.
I can attest to that. When we came home in '91 a lot of guys had "stuff". We received briefing after briefing warning us what would happen if we got caught. I chickened out the day before we flew and left a big old Ghurka knife I had traded for buried in the sand, and then only had the top layer of my duffel searched!
A few guys in my battalion got through some pistols they lifted off of surrendering Iraqi officers. I heard later that the company tool-room (a conex) has a little heavier coming back from theater than when it went.
These things are detected by x-ray machines and metal detectors, you don't need to strip search the soldier to determine that they aren't there.