Media debate on the UK's carrier programme is focusing on the jets, rather than the ships they land on. Central to this discussion is 'cats and traps', the launch and recovery system, which drives the choice of aircraft. Critics who say that this will cost too much overlook the long-term strategic value it will add.
As the UK government grapples with whether or not to carry out a U-turn over which variant of the F-35 Joint Strike Fighter (JSF), chiefly because of issues surrounding carrier conversion costs, there are broader issues beyond technical and financial ones, and some echoes from the past.
Elizabeth Pearson speaks to Thomas Rid, a Reader in War Studies at King's College, London, and he and colleague Peter McBurney who recently wrote about cyberweapons for the RUSI Journal, setting out some pioneering new ideas about their use.