President Donald Trump revealed new details about a mystery missile during an address at West Point Saturday, appearing to offer new insight into a high-speed weapon he previously called the "super duper missile." In mid-May, Trump boasted about US military strength from the Oval Office, and in the process, he announced that the US is building a new missile faster than anything currently available. "We're building incredible military equipment at a level that nobody has ever seen before. We have no choice with the adversaries we have out there," the president said. "We have — I call it, the 'super...