27 July 2004 Canadian Pacific Railway, Defense Department to Conduct Drill 8 Aug 2004 in West Salem West Salem Wisconsin - At 8 a.m. Sunday, 8 Aug 2004, Canadian Pacific Railway (CPR) will help this La Crosse County community and surrounding area conduct an emergency response drill along its tracks in West Salem.   Canadian Pacific Railway will work with the U.S. Department of Defense, local emergency response agencies and others to practice public emergency response procedures. Responders will be told an explosion caused a train to derail into a structure, releasing a vapor cloud. The mock derailment occurs days after a simulated biological terrorism incident in nearby La Crosse.   Residents may hear sirens and see smoke and emergency vehicles and media responding to the scene.   The Heartland Defense Training Exercise will include representatives of CPR, local, state and federal agencies, the Salvation Army, American Red Cross, Civil Air Patrol, police, fire, ambulance and area hospitals. The U.S. Army Medical Service Corps will set up its 452nd Combat Support Hospital at the La Crosse airport to handle injured civilians.   Purposes of the drill include testing multiple agencies' ability to communicate and interact in a crisis, training junior officers and testing whether the public notification system operates as intended around the clock.   Media wishing to cover the drill need to report by 7 a.m. 8 Aug 2004 to the Hazel Brown Leicht Memorial Library at 201 Neshonoc Road in West Salem for a safety briefing and to get directions.