But he stressed that despite its "no" vote, Turkey believes Iran must answer concerns about the nature of its nuclear program.

VOA: standard.2010.06.09

The interception of the ship comes amid growing tensions between Israel and Iran over Teheran's nuclear program.

VOA: standard.2009.11.04

The Russian leader said the purpose of the negotiating process with Iran is to obtain clear guarantees about the transparency of its nuclear program.

VOA: standard.2009.11.16

But the International Atomic Energy Agency, the U.N. nuclear watchdog, has said it can no longer verify any peaceful nature of Iran's nuclear program.

CNN: Obama, Netanyahu agree on preventing nuclear-armed Iran

White House spokesman Tommy Vietor declined to comment on U.S. efforts to counter Iran's nuclear program, but said that the focus of international talks was Iran's flouting of international requirements.

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

U.S. officials and their allies accuse Iran of operating an illicit nuclear enrichment program to develop atomic weapons, a charge Iran denies.

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