BBC: Iran has launched a programme aimed at developing a nuclear fusion reactor – an ambition long-cherished by Western nations. Asghar Sediqzadeh, head of the fusion research institute, said initial studies would last for two years, and a reactor would take 10 years to build. Fusion is used in hydrogen bombs, but scientists have been unable to harness the energy created in such reactions. Iran is already under UN sanctions because of its nuclear activities. Iran …