Iran removed a powerful missile from a launchpad east of Tehran within the past few days, Fox News has learned, as U.S. and Iranian officials continued trading public barbs about the Islamic Republic's missile tests. The Pentagon is concerned because Safir missiles use the same components as those needed for an intercontinental ballistic missile. Iran’s ballistic program has “expanded dramatically” in the past 10 years, a senior U.S. defense official told Fox News. New satellite imagery from Feb. 3, obtained exclusively by Fox News from ImageSat International and verified by U.S. officials, showed Iran preparing a Safir for launch. That...