IED? Stacked Stones

Something as simple as two stones stacked on one another could indicate the location of an IED hidden on the side of the road.

The terrorists have to mark the location of their handi-work carefully so that they can determine when a "target" is close enough to be caught in the explosion.

SuspiciousStackedStones

These stacked stones were near the location where a roadside bomb had exploded in the night. The area was searched but no other IED's were found. These were probably positioned as a marker for the bomb that went off earlier.