President Jack Ryan preaches caution when the prospects for a Persian Spring excite the rest of the world. His is the lone Western voice urging watchfulness. Meanwhile, the Campus has been trailing a major international arms dealer whose business has waxed as the power of the Ayatollah has waned. Now the change of regimes in Iran has opened up formerly unimagined possibilities to him. Possibilities that may lead to a new balance of power in the region. A terrific, high-concept political thriller.