Iran and the United States had a rare moment of agreement Tuesday, using similar language to describe "positive steps" toward an accord on a package of incentives aimed at persuading Tehran to suspend uranium enrichment. The Associated Press quoted diplomats as saying that the incentives include a previously undisclosed offer of some U.S. nuclear technology on top of European help in building light-water nuclear reactors. Other incentives include allowing Iran to buy spare airplane parts and support for joining the World Trade Organization. Iran's top nuclear negotiator, Ali Larijani, said the proposals had "positive steps" but that talks were needed to clear up ambiguities. Iran promised to study the proposals seriously, but gave no timeframe for a response. And U.S. President George W. Bush, using the same language, said Iran's initial response "sounds like a positive step." "We will see if the Iranians take our offer seriously," the president said in Laredo, Texas. "The choice is theirs to make. I have said the United States will come and sit down at the table with them so long as they are willing to suspend their enrichment in a verifiable way." One diplomat in Vienna described the U.S. offer of nuclear technology as particularly significant because it would, in effect, loosen a decades-long American embargo on giving Iran access to "dual use" technologies — equipment with both civilian and military use.