A chilling four-word bomb threat has caused travel chaos in Europe, forcing aircraft to make emergency landings. Fighter jets were scrambled on Thursday morning after airports across the continent received bomb threats, prompting diversions on routes from cities including Copenhagen, Madrid, Helsinki and Warsaw.Transport hubs in Italy reportedly received a harrowing email from a right-wing Russian hate group, threatening to "turn the skies red". The message was sent to at least three Italian airports, The Sun reports. It read: "You are all complicit in a criminal conspiracy. We want to destroy you for this."Precisely for this reason, at this precise...