With millions of passengers travelling on trains and through railway stations every day in the Netherlands, the chance that an employee of railway company Nederlandse Spoorwegen (NS) will have to respond to an emergency situation is high. Medical emergencies due to sudden illness are most common, but staffers need to be prepared for more complex, and even dangerous, situations.

In the deadliest terrorist attack in the United States since September 11, 2001, the recent mass shooting at Pulse nightclub highlighted important concerns surrounding terrorism. The fact that the shooter specifically targeted a gay nightclub during Latino night adds LGBT and diversity issues into the ever-complicated issue—and leaves many organizations wondering how, if at all, they should respond.