Divisions on the road to Rome

After a terror attack on London, the mood will be sombre in Rome tomorrow when EU leaders gather for a special summit to mark the 60th anniversary of the bloc’s founding treaty. The event has been billed as a show of unity among 27 countries that will remain in the bloc as Britain becomes the first country to leave. But last-minute wrangling over a political declaration on the EU’s future threatens to mar the ceremony.