It's good news that President Obama has kicked back the Pentagon's "timid" proposals for a new nuclear posture review in favour of a radical rewrite (Barack Obama ready to slash US nuclear arsenal, 21 September). Breaking out of the "more of the same" approach is key to making progress towards abolition. It was disappointing, then, to read David Miliband's comments, pushing attention off on to Iran and North Korea, as usual (New nuclear resolve, 21 September). Perhaps this isn't surprising when you consider that the UK's nuclear policy remains the replacement of Trident – a cold war system with no...