BRITAIN is to step up its efforts to counter the lethal threat from Russia’s GRU military spy network, Theresa May has told MPs, after she dramatically announced that the two men suspected of the “despicable” Salisbury poison attack were members of it. . http://www.heraldscotland.com/news/16691146.theresa-may-pledges-to-step-up-efforts-against-russias-military-spy-network-after-salisbury-attack/