Reuters: Iran test-fired missiles on Sunday to show it was prepared to head off any military threat, four days before the Islamic Republic is due to hold rare talks with world powers worried about its nuclear ambitions.

Sunday Times: It sounds like a scene from a James Bond movie. Western intelligence agents scouring Iran for a secret nuclear site, big enough to make a bomb but small enough to hide, identified some suspicious tunnels in a mountain complex outside the holy city of Qom.

Washington Post: At talks scheduled for Thursday in Geneva with Iran, the United States and five other major powers will demand immediate and unfettered access to the newly exposed nuclear facility in Iran, including access to people and documents involved in its construction, and they will insist that Tehran abide by international rules to reveal such projects before construction begins, Obama administration officials said Saturday.

Reuters: President Barack Obama said on Friday the United States preferred diplomacy in dealing with Iran over its nuclear program, but would consider imposing "sanctions that bite" if the diplomatic track did not work.

CNN: President Obama recently shared sensitive intelligence with Russia and China about Iran's newly unveiled nuclear facility to get the two countries' leaders on board with new sanctions against Tehran, senior U.S. officials revealed Friday.

Reuters: President Barack Obama warned Iran on Friday that it was "on notice" and said it would have to "come clean" about its disputed nuclear program at a meeting of world powers on October 1.