Those five plus Germany have been preparing to meet with Iranian negotiators on October first to discuss Iran's nuclear program.

VOA: special.2009.09.26

They also urged Iran to honor the United Nations demands to stop enriching uranium and open its nuclear program to international inspectors.

VOA: special.2009.02.07

Critics also noted Russia's efforts to block stronger measures against Iran over its disputed nuclear program.

VOA: special.2009.09.19

We also spoke about Iran nuclear program, and discussed a number of other issues, including European missile defense.

WHITEHOUSE: President Obama's Bilateral Meeting with President Medvedev of Russia | The White House

Officials are looking to see whether the revelations about covert U.S. efforts to spy on and sabotage Iran's nuclear program will create new hurdles for upcoming negotiations this month on Iran's nuclear program.

WSJ: U.S. Team Behind Computer Worm That Hit Iran

The West says Iran is pursuing a military nuclear program but Iran rejects the claim, saying its nuclear program is for peaceful purposes.

WSJ: Huawei to Scale Back Business in Iran