Pakistan’s top general has set off alarm bells with an unprecedented warning—delivered not in Islamabad, but from Tampa, Florida. Speaking at a private dinner, Army Chief Gen Asim Munir said, "We are a nuclear nation. If we think we are going down, we’ll take half the world down with us." According to reports, this marks the first known instance of a nuclear threat being issued from American soil against another nation. The remarks came during a function hosted by businessman Adnan Asad, Tampa’s honorary consul, where around 120 guests of Pakistani origin were present. Security at the gathering was tight—cellphones...