of the martial arts. Concepts include the Jim Wagner Use-of-Force Ladder, the O.O.D.A. process, training-environment control and conflict rehearsal.  (less)

Line; and Wisconsin Central were then still independent, operating entities. Other railroads plied the lines there as well: Belt Railway of Chicago; Chicago Rail Link; Chicago Short Line; Chicago, South Shore & South Bend; CSX Transportation; Elgin, Joliet & Eastern; Indiana Harbor Belt; Iowa Interstate; Metra; Norfolk Southern; Union Pacific; and Amtrak. Pentrex explored this intensely active hub, stopping at famous hot spots and some less well-known locations: 16th Street Tower, Belt Tower, Blue Island Crossing, Brighton Park, Colehour Yard, Clyde Yard, Dolton Jct., Downer's Grove, Edgebrook, Elmhurst, Eola, Goose Island, Hammond, Hayford Jct., Hegewisch, Lombard, McCook Jct., Porter Jct., Riverside, State Line Cross...  (less)