I find it amusing NS is using AC-traction pool power to haul it’s freight. BNSF #6184 and UP #7813 ES44ACs on the Hannibal Sub in Illinois.
http://www.railpictures.net/viewphoto.php?id=320517&nseq=26
http://www.railpictures.net/viewphoto.php?id=320553&nseq=22
The number of non-NS AC pool power on NS tracks probably outnumbers NS’s own roster of AC-traction SD80MACs and ES44ACs. The chance of spotting NS SD80MACs and ES44ACs in the midwest is nil since NS keeps it’s modest AC-traction roster out east.