Sources of individual or social decay are sometimes most dangerous, when they are associated with great achievements, and rich benefits.That's Alfred Marshall, in Industry and Trade (which is still in print). A book review I am working on made reference to this work, and as several other related books also made reference to it, I took it with me on a quick Hiawatha ride (one can never take too many train rides) and started reading through it. It is astonishing how many things haven't changed in the 80 years since this book was written, and there will be more observations on it to follow.
The train? Ten minutes early northbound, close to time southbound despite an unexplained stop near Pleasant Prairie, and the Milwaukee airport station is going to be a fairly substantial structure set well back from the tracks in the contemporary fashion.