Nuclear powers join Hiroshima memorial

The site of the world’s worst atomic bomb attack echoed with the choirs of schoolchildren and the solemn ringing of bells as Hiroshima marked its biggest memorial yet – and the first to be attended by Britain, the US and other major nuclear powers.

Washington’s decision to send US ambassador John Roos to the 65th anniversary of the bombing was seen by many as potentially paving the way for Barack Obama to visit Hiroshima – which would be unprecedented for a sitting US leader.