Did you know that Louisville, Kentucky was right on an international border, thereby justifying an extensive border search (without any suspicion of criminal activity)?
Not that I disagree. This case is actually a good example of how application of the Constitution (here, the Fourth Amendment) can change in light of modern realities. In 1791, there's no way that a "border" search would have been allowed in Louisville, or anyplace else so far from the actual border. But airplanes, and international mail hubs, make the world a bit different from what it was in 1791. So the application of the Fourth Amendment changes with it.
Here, it results in a reduction of rights. By contrast, sometimes it goes the other way. That doesn't distress me. It instead seems about right.