The "obvious" applicaton and target nation for a machine gun-toting
robot that
can distinguish between humans and trees or whatever is India - with
guarding
of the line of control between Jammu and Kashmir and Pakistan occupied
Kashmir in mind.
With the "whatever" obviously being machine gun-toting fence-hopping
robots, in addition to humans and trees. For the moment, I think power
considerations certainly point to defensive use but can offensive use
be far behind? (Wikipedia's entry on Kargil says both Pakistan and
India had deployed US and Israeli-sourced UAVs in 1999)
-Dave
