>>
>>And I wouldn't be surprised if they were moving empty crates, just to fool the spies. I would have done that in their place.
>
>Yeah, I like to fool heavily armed police like that - pretend I've got a gun and I'm about to shoot them. Boy, just to see the looks on their faces right before they open up, and to have the satisfaction of how silly they are going to feel examining my body and find out it wasn't a gun at all <bg>

It was common practise in WWII, and I still think so in modern warfare, that cardboard cutouts of tanks and planes and who-knows-what are used to suggest to enemies that there is more stuff there than there really is.
Moving empty crates would qualify similarly. Pulling a toy gun on a cop ain't quite the same (I do see your <bg>)

cheers