In the age of Isis, how vigilant do UK tourists need to be? In early November, British travellers in even the most innocuous of nations were urged by the Foreign Office to be more vigilant. The FO sent about 100 emails updating Britons on the latest events that could affect travel abroad. Some of the warnings were even addressed to UK tourists going to Iceland, Malta, Liechentenstein and San Marino. The terrorism section for each country had been changed. So how should UK tourists take in this new advice?