Organisers have already started work on the 2017 edition of one the world’s largest – and most controversial – defence and security shows, after its latest edition was held in London last week. Laser guns, Ebola treatment centres, medevac helicopters and warships were among the displays at Defence and Security Equipment International (DSEI), organised by Clarion Events. ExCeL London was transformed into a military base, from 15 to 18 September, for the trade event and conf...