Brussels, 06/05/2013 (Agence Europe) - Following the derailment in Belgium of a train carrying chemical substances during the night of Saturday 4 May, the European commissioner for transport, Siim Kallas, speaking on Twitter, expressed his concerns on Monday 6 May. Poisonous fumes, similar to cyanide, were emitted from the acrylonitrile on board the train, following the explosion and fire caused by the derailment. The Belgian authorities had to evacuate those living close to the scene. So...