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《華盛頓郵報》星期日晚上報導說，據了解這份情報的西方外交官和核專家透露，伊朗已在外國科學家的幫助下完成關鍵步驟，克服了技術難題。

The Washington Post reported on Sunday night that according to the statements of the western diplomats and nuclear experts who were familiar with the issue, Iran had achieved critical steps with the help of foreign scientists, and had conquered technical problems.

曾在國際原子能機構工作的一名前任官員說，伊朗取得的進展包括設計、測試引發核爆炸的爆炸裝置。

A former IAEA official said that Iran's breakthrough included designing and testing the detonation device that could trigger nuclear explosion.