With more oil tanker cars on Wisconsin's railways than ever before, the odds of accidental derailments and fires are increasing. The risk may be small, but it's very real. That's why firefighters from communities across the United States are learning how to tackle these potentially explosive situations. At a specially-designed training ground in the desert near Pueblo, Colorado, firefighters are trained to identify, mitigate and extinguish tanker car fires through realistic simulations. Last month, Clyman Fire Department Lt. Jason Hensler attended an intensive three-day "crude by rail" training program at the Security and Emergency Response Training Center in Pueblo.