It's 10pm, in the middle of the North Atlantic. I'm sitting in the campaign office, just behind the bridge of the Esperanza, still wrapped in layers of thermal gear, as I've just spent six hours out in the dark, in an inflatable. But while I'm sitting here, in relative comfort, three of our guys are on board a Lithuanian-flagged bottom trawler, the Anuva. It's going to be a long night.