Given Tehran's defiant response to the European and American effort to constrain its nuclear program, it is time for bolder diplomacy out of Washington. U.S. President George W. Bush should take a page from the playbook of Ronald Reagan, who negotiated with an evil Soviet regime--competing in the war of ideas, but addressing the enemy's security concerns through arms-control agreements.

Iran's intransigence is both deeply unfortunate and perfectly predictable. It is unfortunate because Tehran's refusal to suspend its uranium-enrichment operations immediately--as demanded in July by the U.N. Security Council in a legally binding resolution--suggests that Iran is moving more quickly than expected toward a nuclear-weapons capability. Tehran has now turned the nuclear crisis into a test of the whole U.N. Security Council system. And Russia and China's current position, threatening to veto any biting sanctions against Iran, suggests that the Security Council may well fail this crucial test.

Tehran's response is predictable, however, because the offer on the table contains both inadequate economic carrots and barely credible threats of sanctions and military force. The carrots appeared impressive at first glance--in return for a suspension of enrichment we reportedly promised to provide light-water nuclear reactors and to help Iran with civil aviation and telecommunications technology. But we did not offer the one incentive that might possibly work, security guarantees that could reduce Iran's desire for nuclear weapons.

This omission is striking. The Iranian government can't talk openly about their security concerns because that would blow their cover story that the nuclear program is only for energy production. And Washington does not want to discuss such worries because it wants to keep open the possibility of removing the regime by force. "Security assurances are not on the table," U.S. Secretary of State Condoleezza Rice too cleverly argued this spring: "It is a little strange to talk about security guarantees ... I thought the Iranian position was that they weren't developing a nuclear bomb."

This is partly a crisis of our own making, as the Bush administration has practiced the reverse of Teddy Roosevelt's maxim--speaking loudly and carrying a small stick. Think about how Tehran reacted when Bush stated (in his second Inaugural Address), "The rulers of outlaw regimes can know that we still believe as Abraham Lincoln did: 'Those who deny freedoms to others deserve it not for themselves; and, under the rule of a just God, cannot long retain it." Or when Bush dramatically told reporters last April that "all options are on the table," in direct response to a question about whether he was considering a nuclear attack against Iran. Such statements only encourage Iran to develop a nuclear deterrent quickly, before the United States can carry out its perceived aggressive intent. Last month, Iran's National Security Council Secretary Ali Larijani pointedly complained about such rhetoric. "How can a side that wants to topple the regime also attempt to negotiate?"

Given the current vulnerability of U.S. forces in Iraq, the deteriorating situation in Afghanistan, and the lack of Israeli success against Hizbullah, Iranian officials seem confident that they face no immediate threat of a U.S. military assault. But they are clearly worried that Bush just might attack Iran right before he leaves office in January 2009, or that his successor might do so once U.S. forces withdraw from Iraq.

The best way to prevent a nuclear Iran is for Washington to offer the kind of security assurances that might reduce support in Tehran for building a nuclear arsenal. It will be hard to make such assurances credible, but a public U.S. promise to take forcible regime change off the table, and a U.N. Security Council commitment to protect the "political sovereignty" of Iran could help. Involving the Security Council could also pull China and Russia back into the nonproliferation coalition and enhance the U.N.'s legitimacy.

There is very little time left, which means negotiations should begin despite Iran's unfortunate opening position. Tehran's response reportedly indicated a willingness to negotiate all aspects of its nuclear program, so working out an agreement for Iran to limit itself to low-level uranium enrichment might still be possible. This would work only if Tehran accepts full IAEA inspections and a freeze on future centrifuge construction. Will they? The one thing that might cause Tehran to do so, and that would compensate for any loss of face, would be an assurance that the United States will not launch another preventive war, as it did in Iraq, to remove the Iranian regime. If in turn we get a nuclear-free Iran, that's a good deal for the West as well.

Yo-Yo Ma sat on the edge of the small stage at the Art Institute, his cello resting across his lap.

"See this fingerboard?" the acclaimed cellist asked the audience. "It is made out of ebony, which comes from Africa."

"The red varnish," he said, massaging the body of the instrument, "comes from as far away as Malaysia."

"The hair on the bow comes from Mongolia and the wood of the bow can be found only in Brazil," he said.

Ma's multicultural cello seemed the perfect metaphor for his most recent endeavor: bringing the rich artistic and cultural history of the Silk Road to Chicago Public Schools students.

The Silk Road, the ancient network of trade routes that crisscrossed Eurasia through the 1500s, served as the main conduit for the cultural exchange of goods, art and music. And when Ma sat down and played a soulful partita by Turkish composer Ahmed Adnan Saygun, he showed that cultural exchange enriches the world.

"This is a global instrument," he said. "And by bringing the world together ... beautiful music can be made."

Ma was in town Monday as part of Silk Road Chicago, a yearlong citywide celebration inspired by the art, music and culture along the historic road that stretched from Japan and China through central Asia and into the Mediterranean. The Chicago series is part of the larger Silk Road Project, a multiyear, multicity odyssey created by Ma.

Specifically, Ma spent the day helping introduce a new Silk Road school curriculum to Chicago Public Schools teachers.

Through a collaboration with the Art Institute, 80 Chicago teachers will spend the week discovering the Silk Road and learning how best to explain its importance to students.

"It's sometimes difficult to get students to engage in something that seems so far removed from their lives," explained Gary Mukai, from Stanford University, who helped develop the Silk Road curriculum. "We hope we can help students make a link to their own lives by engaging them musically, mathematically and artistically in the Silk Road history."

Through the lesson plan, students can trace the history of Asia and the West through the important innovations that migrated along the Silk Road. Students will learn that gunpowder, the magnetic compass, lacquer crafts and, of course, silk, flowed from East and West and back.

Musical forms and instruments also traveled the Silk Road, as string, wind and percussion instruments from the East and the West influenced each other. Cymbals were introduced into China from India. The Chinese gongs traveled to Europe. And the Persian mizmar, a reed instrument, seems to have been the ancestor of the European oboe and clarinet.

Ma implored the teachers to reach out to students and help create a "spark" that will open their minds to the "amazing cultures around them."

"As teachers, you are incredible guides into a world that you can make a most exciting place," he said.

The Silk Road is a metaphor that "joins us together not only in material things but in spiritual ways," he said. "You can translate that to your students."

Don Gibson, a music teacher from Dyett High School on the South Side, said the Silk Road will help him incorporate history lessons into his music courses.

"Through the Silk Road music lessons, I can broaden their understanding of cultures and the history of those cultures," Gibson said. "To be inspired by the music, sometimes, you have to know its history."

READER CONNECTION
Would you like to learn more about the Silk Road Chicago events? Visit the Silk Road Project.

As a model of a democratizing and secular Muslim state that has been a stalwart ally for more than 50 years, Turkey is of enormous strategic importance to the United States and Europe, especially at a time when the widening chasm between the West and the Islamic world looms as the greatest foreign policy challenge. Yet Ankara's relations with Washington are strained - over Iraq, Cyprus, Syria, Iran and Hamas - and Turkey's prospects for joining the European Union remain uncertain.

As Washington prepares for a visit Wednesday by Turkey's foreign minister, Abdullah Gul, the United States and Turkey should explore three initiatives to repair and revitalize their relationship.

First, although the United States and Turkey share broad goals in Iraq, the situation there threatens a potential breach in relations. The Turks feel the war in Iraq has undermined their security by stirring Kurdish nationalism. It also coincided with renewed terrorist attacks mounted by the Kurdistan Worker's Party from inside Iraq. To address this challenge, the United States should initiate a trilateral dialogue on the future of Iraq with Turkey and representatives of the Iraqi government, including Kurdish leaders.

If the effort to build a functioning Iraqi government is successful, this trilateral consultative process will support the common goal of a unified and sovereign Iraq; should the Iraqi government fail, the dialogue will provide a mechanism for managing some of the worst potential consequences.

Second, Washington must make it a diplomatic priority to persuade skeptics in Europe to take a more positive approach toward Turkey. Peering into the future and considering the strategic implications of a Turkey unmoored - or, more darkly, a Turkey that turns against its traditional partners, aligning itself more closely with Damascus, Moscow or Tehran - should be instructive.

Washington needs to make the case to its European allies that delaying Turkey's accession to the EU could harm their security. The longer accession takes, the more likely it is that Turks will become disenchanted with the EU and look elsewhere for opportunities; it is also more likely that Turkey's impressive political reform process, which began in 2002, will stall.

Further, Washington should take a leadership role in working to resolve the Cyprus conflict, which threatens to create further obstacles to Turkish EU membership. Rather than waiting for a new UN or EU initiative on the future of the island, America should catalyze a renewed negotiation process. A special Cyprus coordinator would work with the UN and EU to develop a new plan for reuniting the island, encourage European leaders to use their collective clout to require more constructive behavior from the Cypriot government, and coordinate Washington's political, diplomatic and economic steps to break Turkish Cypriots from their international isolation.

Third, the United States and Turkey should establish a high-level commission that meets twice a year and provides a structured mechanism for interaction across agencies of government, nongovernmental organizations and the private sector. At the outset, three working groups should be launched, focusing on security, economic and commercial ties, and educational and cultural exchanges.

A U.S.-Turkey cooperation commission could facilitate the re-establishment of the sustained interaction that characterizes America's strongest partnerships, and provide a foundation for keeping Turkey aligned with the West should Ankara's bid for EU membership ultimately fail.

As tensions over the outcome in Iraq mount, the prospects for generating positive momentum in U.S.- Turkey relations are diminishing. The consequences of a disoriented Turkey would be even greater than a failure in Iraq. America and Europe must do everything they can to ensure that Turkey remains firmly anchored in the West.

Steven A. Cook and Elizabeth Sherwood-Randall are fellows at the Council on Foreign Relations.