美国驻联合国临时代表：伊朗长期隐瞒其核武器计划，并在最近的谈判中对我们的诚意努力采取了阻挠的态度。伊朗不应升级事态。安理会必须敦促伊朗停止其消灭以色列的努力，终止其追求核武器的行动。

Core Points - The U.S. representative to the UN claims that Iran has long concealed its nuclear weapons program and has obstructed recent negotiations [1] - The representative urges the Security Council to pressure Iran to cease its efforts to eliminate Israel and to stop pursuing nuclear weapons [1] Summary by Categories Iran's Nuclear Program - Iran is accused of long-term concealment of its nuclear weapons program [1] - Recent negotiations have been hindered by Iran's obstructive attitude [1] International Relations - The U.S. representative emphasizes the need for the Security Council to take action against Iran [1] - There is a call for Iran to halt its aggressive actions towards Israel [1]