Guardian: A nuclear leak, which could have caused a major disaster, was only averted by a chance decision to wash some dirty clothes, according to a newly obtained official report. On the morning of Sunday 7 January 2007, one of the contractors working on decommissioning the Sizewell A nuclear power station on the Suffolk coast was in the laundry room when he noticed cooling water leaking on to the floor from the pond that holds the reactor’s highly radioactive spent nuclear fuel. As …