Maybe because the location isn't simply unknown, it's known to be in the US, but not any indication of where in the US. I'd imagine it's the same as finding th

Maybe because the location isn't simply unknown, it's known to be in the US, but not any indication of where in the US. I'd imagine it's the same as finding the geographic location of a street - often a point on the middle of the street is picked. Not saying that this couldn't have been handled better though.