Future of Iran's Missile Program Threatened by Explosion Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email A display long-range surface-to-surface Shahab-3 missile is pictured in front of a portrait of Iran's supreme leader, Ayatollah Ali Khamenei, in southern Tehran on Sept. 23. 2010 ( BEHROUZ MEHRI/AFP / Getty ) Produced by PRI and WNYC