UN Nuclear Chief Seeks Pact on Wider Iran Probes The head of the U.N. nuclear agency pushed Monday for a breakthrough pact with Iran to resume inspections into suspected secret atomic weapons work and possibly set in motion further dealmaking when envoys from Tehran and world powers gather later this week in Baghdad. The mission by International Atomic Energy Agency chief Yukiya Amano - his first to Iran since taking the post in 2009 - raised speculation about greater flexibility by Iranian officials as they struggle to balance the blows from Western sanctions and their insistence never to abandon the country's nuclear program. But any Iranian cooperation - including possibly opening up a military site to U.N. inspectors - will carry reciprocal demands that the West may consider reaching too far, too soon. Tehran has already signaled its goal before Wednesday's talks: Pressing the U.S. and Europe to roll back sanctions that have hit critical oil exports and blacklisted the country from international banking networks. The West's opening gambit, meanwhile, may aim at one of Iran's most prized advances - its ability to make nuclear fuel. A main concern is Iran's production of uranium enriched to 20 percent, which is far higher than needed for regular energy-producing reactors but used in medical research. The U.S. and allies fear the higher-enriched uranium could be quickly boosted to warhead-grade material. Iran's top nuclear negotiator, Saeed Jalili, right, welcomes International Atomic Energy Agency (IAEA) chief Yukiya Amano, center, for their meeting, as Iran's chief delegate to the IAEA Ali Asghar Soltanieh looks on, in Tehran, Iran, Monday, 21, 2012. Iran denies it seeks nuclear arms and says its reactors are only for power and medical applications. U.S. officials have said Washington will not backpedal from its stance that Iran must fully halt uranium enrichment. But speculation is increasing that the priorities have shifted to block the 20 percent enrichment and perhaps allow - at least for the moment - Iran to maintain lower-level nuclear fuel production. Iranian officials could package such a scenario as a victory for their domestic audience. In Israel, it would likely be greeted with dismay and widen rifts between the Obama administration and Israeli officials who keep open the threat of military action against Iran's nuclear sites. Israeli Prime Minister Benjamin Netanyahu warned against concessions, saying world powers should make "clear and unequivocal demands" that Iran stop all of its nuclear enrichment activity. "Iran wants to destroy Israel and it is developing nuclear weapons to fulfill that goal," Netanyahu said at a conference for civil servants in Jerusalem. They should not make any concessions to Iran. In Warsaw, Iran's ambassador to Poland, Samad Ali Lakizadeh, said Monday that he believes the Baghdad talks offer a "very good chance and opportunity to solve many problems, provided that our rights are respected" - a reference to U.N. nuclear treaties that permit signatory nations, such as Iran, to enrich uranium. Optimism for the Baghdad round was further boosted by the U.N. nuclear chief's visit to Iran - just days after talks with Iranian envoys in Vienna that were described as making progress. Amano is focused on getting Iran agreement to allow IAEA probes of various high-profile Iranian sites, including the Parchin military complex southeast of Tehran, where the agency believes Iran in 2003 ran explosive tests needed to set off a nuclear charge.