Iran is preparing to launch its second indigenous communications satellite aboard a Safir-2 (Ambassador) booster rocket, an event that will test the country's ballistic missile capabilities. And, if it's successful, it could impact significantly on U.S.-led negotiations with Tehran over its nuclear ambitions by demonstrating the Iranians' growing mastery of missile technology. Satellite launch vehicles such as the two-stage Safir-2, believed to be a modified Shehab-3 intermediate-range ballistic missile, are generally considered to have a potential application as an intercontinental ballistic missile. Ten months ago Iran successfully launched the Omid 1 (Hope) satellite into orbit atop a 72-foot Safir from...