According to them, a nuclear Iran may damage the nuclear Nonproliferation Treaty (NPT), the agreement under which states endorse nuclear disarmament and pledge not to develop nuclear weapons.

他们认为，拥有核武器的伊朗可能会破坏防止核扩散条约(NPT)。该条约需要国家签署裁减核武器协定，并承诺不开发核武器。

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Mr Cameron's visit came as First Minister Jack McConnell travelled to London to endorse a partnership agreement with Tony Blair on policy co-operation.

BBC: NEWS | UK | Scotland | Tory leader attacks Union debate