President's remarks about supporting armed resistance give hope to exile groups seeking to topple Tehran's regime—and worry to critics who remember Reagan-era blowback....
Air Force clears critical milestone for re-powering its 76-aircraft fleet with modern engines that extend service through 2050....
Israeli security officials say half-measures failed before—this time they want every centrifuge shut down and underground sites destroyed....
NATO scrambles for affordable defenses as adversaries flood battlefields with drones costing as little as $500 each....
New infrastructure would bypass the Strait of Hormuz, where Tehran threatens one-fifth of the world's petroleum supply....