A devastating US military strike against Iran's nuclear and military facilities "is a technically feasible and credible option," a retired general asserted in an article published on Friday. Retired air force general Charles Wald, a former deputy commander of US forces in Europe, said US policy makers must prepare for a "Plan B," including the military's role, should diplomacy fail. "A peaceful resolution of the threat posed by Iran's nuclear ambitions would certainly be the best possible outcome," Wald wrote in an opinion piece in the Wall Street Journal. "But should diplomacy and economic pressure fail, a US military strike...