We have a single currency, many laws are exactly the same and come from Brussels and there is movement towards closer political union, but still police officers in Europe have a problem sharing information. It does sound incredible but it is the sad truth. There is now a dispute between European police officers over who knew what about the attackers in Barcelona. It appears that sensitive information was not passed from one force to the other. The Spanish prime minister, Mariano Rajoy, is now calling for closer co-operation, but I sincerely doubt that it will solve the problem.