[Poohbah]

And what do the Indian LRRPs look for? Lotsa semis going nowhere in particular.

[RightWhale]

It would be listening more than looking. There would be characteristic sounds foreign to open countryside. For example you might hear someone speaking in Pakistani in the forest in the night saying something like, "No we are not in #@%$&^% position. I can't get this $^%& piece of *^&% thing out of reverse." Then you might move cautiously toward the sound expecting to report something other than a farmer at 3 AM in the woods.