The article illustrates a constructivist understanding of studying terrorism and counter-terrorism by applying metaphor analysis to a British tabloid media discourse on terrorism between 2001 and 2005 in The Sun newspaper. It identifies four conceptual metaphors constituting terrorism as a war, a crime, an uncivilised evil and as a disease, and it illustrates how these understandings make certain counterterrorism policies such as a military response, judicial measures or immigration policies acceptable while at the same time excluding from consideration other options, such as negotiations. It thereby re-emphasises that a metaphorical understanding of political phenomena such as terrorism can give International Relations insights into how certain policies become possible while others remain outside of the range of options thought to be appropriate.